arm: dts: imx8mm-venice-gw7903: add dig1_ctl and dig2_ctl gpios

The GW7903 revision B adds two additional GPIO's to control the
direction of the 2 isolated digital I/O circuits.

Define them as:
 - dig1_ctl
 - dig2_ctl

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2 files changed