add scripts for st-flash, openocd and gdb

flash.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+set -e
+
+BUILD_DIR=vendor/micropython/stmhal/build-TREZORV2
+
+st-flash write $BUILD_DIR/firmware0.bin 0x8000000
+sleep 0.1
+st-flash write $BUILD_DIR/firmware1.bin 0x8020000

gdb.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+BUILD_DIR=vendor/micropython/stmhal/build-TREZORV2
+
+gdb $BUILD_DIR/firmware.elf -ex 'target remote localhost:3333'

openocd.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+openocd -f interface/stlink-v2.cfg -f target/stm32f4x_stlink.cfg

vendor/micropython

@@ -1 +1 @@
-Subproject commit 9854beef6bb9cecc92927cb2c419998e8502bda4
+Subproject commit ab1072883ffbac8610f53e75a826f6fac9780106