x64.conf: Add nic7018_wdt watchdog driver
x64.conf: Add nic7018_wdt watchdog driver

NIC7018 watchdog device required this driver to function,
otherwise the image is without a working watchdog driver.

Signed-off-by: Hui Chun Ong <14642322c1340908503786c11f82cd03348dbf0b@ni.com>
Acked-by: Ioan-Adrian Ratiu <7ec73abcfe099fc5574c01312b62768070c80980@ni.com>
Natinst-ReviewBoard-ID: 200242

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt