Tested with SAMD21J18A on the SAMD21 Xplained Pro board.
Change-Id: Ice9ebcd229ed038b3193baf92d910f9256d7ce91
Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com>
Reviewed-on: http://openocd.zylin.com/1873
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>