i.MX6ULL has the same WDOG3 base address as i.MX6UL, so take this
into account in the base address definition.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: NPeng Fan <peng.fan@nxp.com>
Reviewed-by: NStefano Babic <sbabic@denx.de>