Enable DM imx WDT
Enable SYSRESET_WATCHDOG to maintain WDT based reset ability

Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Series-to: u-boot@lists.denx.de
Series-cc: Robert Beckett <bob.beckett@collabora.com>
Series-prefix: RESEND
Cover-letter:
GE boards initial DM conversion

This searies syncs the device trees from Linux, fixes a couple of issues
and starts enabling DM features for GE boards.
END