a bitfield may carry a type (bool or int), add support for that. Change-Id: Ic831a9b8eac8579e8fdd7d0f01b7f1c9259e6739 Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com> Reviewed-on: http://openocd.zylin.com/4459 Tested-by: jenkins Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>