stm32f30x: Add boundary scan TAP ID to match silicon

Change-Id: I74ef3cfc437540aedd99da46ac3e0c6cd9c5cd8d
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1354
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>