ANDROID: Enable Rockchip GPIO command

This enables the Rockchip GPIO command in U-Boot with
the intent for it to be used to toggle the PoE
(Power-over-Ethernet) fan.

Bug: 147114554
Test: local build and boot
Signed-off-by: Tristan Muntsinger <muntsinger@google.com>
Change-Id: I1a46c5405bd960f32ed88c79aaf9aeb679069f4c
1 file changed