This adds support for the STM32F4 target and the STM3241G Eval Board, in
both standalone and using the onboard STLINK.
Change-Id: I62f8908b5880568b2b36c78a78f94c40861ff335
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/540
Tested-by: jenkins