ARM: dts: imx8ulp-evk: Fix iomuxc issue

The property fsl,mux_mask is deleted by commit ed7bda5 (imx8ulp:
synchronise device tree with linux). This causes the pinctrl
driver not work on 8ULP, so fail to print any log.

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
1 file changed