imx: imx8mm-mx8menlo: drop unneeded watchdog settings

pinctrl_wdog as u-boot,dm-spl already marked in imx8mm-verdin-u-boot.dtsi,

The set_wdog_reset() function is not necessary as this is handled by
the imx_watchdog.c driver due to the 'fsl,ext-reset-output' property
being set.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
1 file changed