* move f4 config files
* don't need this
* f7
* f7
* h7
* this was duplicated
* turn off smart build
* loader too
* update prometheus paths
* bootloader should include confdir
* fix the flash size while we're at it
* move chconf_common
* use wait
* normalize board.mk
Co-authored-by: Matthew Kennedy <makenne@microsoft.com>