stm32: add new stm32f0 device id

updated from RM0091 rev4.

Change-Id: Ic5e46229b85ce3974ef3016724d29a94037ac577
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1435
Tested-by: jenkins