pitx-imx8m: fix UART3 and USB1_OTG iomux settings for rev2
Due to HW design errors in rev2, some signals must be reconfigured
to avoid malfunction or possible electrical damage.
- Setup UART3 RTS/CTS lines as GPIOs as polarity has been swapped on rev2
- Make sure to set GPIO1_IO12 (USB1_OTG_PWR) in input mode and remove usb0
port from u-boot device tree to avoid conflicting drivers when external
host is attached.
Signed-off-by:
Thomas Schaefer <thomas.schaefer@kontron.com>
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