The stm32 family supports using SYSRESETREQ as a software reset, lets use it. Change-Id: I171ffa8d888a2d0c28b266051030311521e9bca9 Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-on: http://openocd.zylin.com/472 Tested-by: jenkins Reviewed-by: Mathias Küster <kesmtp@freenet.de>