remove target.h from flash.h

The flash.h header does not require the target.h header file, but
its implementation source files do.  Move it to flash/nor/imp.h.

src/flash/flash.h

@@ -27,7 +27,6 @@
 #define FLASH_H
 
 #include <flash/common.h>
-#include <target/target.h>
 
 struct image;
 

src/flash/nor/aduc702x.c

@@ -23,11 +23,11 @@
 #include "config.h"
 #endif
 
-#include <flash/flash.h>
-#include <target/armv4_5.h>
+#include "imp.h"
 #include <helper/binarybuffer.h>
 #include <helper/time_support.h>
 #include <target/algorithm.h>
+#include <target/armv4_5.h>
 
 
 static int aduc702x_build_sector_list(struct flash_bank *bank);

src/flash/nor/at91sam3.c

@@ -57,13 +57,9 @@
 #endif
 
 
-#include <stdio.h>
-#include <string.h>
-#include <stddef.h>
-#include <helper/types.h>
-#include <flash/flash.h>
-#include <helper/membuf.h>
+#include "imp.h"
 #include "at91sam3.h"
+#include <helper/membuf.h>
 #include <helper/time_support.h>
 
 #define REG_NAME_WIDTH  (12)

src/flash/nor/at91sam7.c

@@ -49,6 +49,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "at91sam7.h"
 #include <helper/binarybuffer.h>
 

src/flash/nor/avrf.c

@@ -21,9 +21,9 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "avrf.h"
 #include <target/avrt.h>
-#include <flash/flash.h>
 
 
 /* AVR_JTAG_Instructions */

src/flash/nor/cfi.c

@@ -23,6 +23,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "cfi.h"
 #include "non_cfi.h"
 #include <target/armv4_5.h>

src/flash/nor/ecos.c

@@ -21,10 +21,10 @@
 #include "config.h"
 #endif
 
-#include <flash/flash.h>
+#include "imp.h"
 #include <target/embeddedice.h>
-#include <target/image.h>
 #include <target/algorithm.h>
+#include <target/image.h>
 
 
 #if 0

src/flash/nor/faux.c

@@ -21,7 +21,7 @@
 #include "config.h"
 #endif
 
-#include <flash/flash.h>
+#include "imp.h"
 #include <target/image.h>
 #include "hello.h"
 

src/flash/nor/imp.h

@@ -21,6 +21,10 @@
 
 // this is an internal header
 #include "core.h"
+// common flash internals
+#include <flash/common.h>
+// almost all drivers will need this file
+#include <target/target.h>
 
 /**
  * Adds a new NOR bank to the global list of banks.

src/flash/nor/lpc2000.c

@@ -25,10 +25,11 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "lpc2000.h"
-#include <target/armv7m.h>
 #include <helper/binarybuffer.h>
 #include <target/algorithm.h>
+#include <target/armv7m.h>
 
 
 /* flash programming support for NXP LPC17xx and LPC2xxx devices

src/flash/nor/lpc288x.c

@@ -31,6 +31,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "lpc288x.h"
 #include <helper/binarybuffer.h>
 

src/flash/nor/lpc2900.c

@@ -23,11 +23,11 @@
 #endif
 
 
-#include <target/image.h>
-#include <flash/flash.h>
+#include "imp.h"
 #include <helper/binarybuffer.h>
-#include <target/armv4_5.h>
 #include <target/algorithm.h>
+#include <target/armv4_5.h>
+#include <target/image.h>
 
 
 /* 1024 bytes */

src/flash/nor/ocl.c

@@ -21,8 +21,8 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "ocl.h"
-#include <flash/flash.h>
 #include <target/embeddedice.h>
 
 

src/flash/nor/pic32mx.c

@@ -27,6 +27,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "pic32mx.h"
 #include <target/mips32.h>
 

src/flash/nor/stellaris.c

@@ -28,10 +28,11 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "stellaris.h"
-#include <target/armv7m.h>
 #include <helper/binarybuffer.h>
 #include <target/algorithm.h>
+#include <target/armv7m.h>
 
 
 #define DID0_VER(did0) ((did0 >> 28)&0x07)

src/flash/nor/stm32x.c

@@ -24,10 +24,11 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "stm32x.h"
-#include <target/armv7m.h>
 #include <helper/binarybuffer.h>
 #include <target/algorithm.h>
+#include <target/armv7m.h>
 
 
 static int stm32x_mass_erase(struct flash_bank *bank);

src/flash/nor/str7x.c

@@ -24,6 +24,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "str7x.h"
 #include <target/armv4_5.h>
 #include <helper/binarybuffer.h>

src/flash/nor/str9x.c

@@ -27,6 +27,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "str9x.h"
 #include <target/arm966e.h>
 #include <target/algorithm.h>

src/flash/nor/str9xpec.c

@@ -24,6 +24,7 @@
 #include "config.h"
 #endif
 
+#include "imp.h"
 #include "str9xpec.h"
 #include <target/arm7_9_common.h>
 

src/flash/nor/tms470.c

@@ -22,6 +22,7 @@
 #endif
 
 #include "tms470.h"
+#include "imp.h"
 
 
 /* ----------------------------------------------------------------------

src/server/gdb_server.h

@@ -27,6 +27,7 @@
 #define GDB_SERVER_H
 
 struct image;
+#include <target/target.h>
 
 #define GDB_BUFFER_SIZE	16384