By default, imx8qm/qxp b0 silicon set the IO voltage to 2.5v, but mek/arm2
boards are designed as 1.8v voltage for enet IO, so force the IO voltage
to 1.8 by setting COMP_CTL_GPIO_1V8_3V3 pins like:
The pin setting:
1.8V/3.3V : bit4=0, bit[30]=1, bit[2:0]=000
2.5V : bit4=1, bit[30]=1, bit[2:0]=010
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>