MLK-18218 ARM: dts: imx7ulp-evk: delete property to support SD3.0

MLK-18218 ARM: dts: imx7ulp-evk: delete property to support SD3.0

commit b62dd733a100 ("MLK-18127 ARM: dts: imx7ulp-evk: few correction
for usdhc1") add property "no-1-8-v" for the usdhc1 which limit the
wifi. The sd slot on base board share this usdhc1, so the usdhc1
in imx7ulp-evk-sd1.dts also inherit this property.

delete the "no-1-8-v" property, then the sd slot can support SD3.0

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
(cherry picked from commit 6cb30044642b43f9e55d63beca61bc1397d3d996)