The gpu node originally was explicitly left disabled as it was expected
for the bootloader to enable it. However, this is only done in u-boot.
If u-boot is not in the boot chain, this will never be enabled. Other
Tegra186 devices already explicitly enable the gpu, so make p3310 match.
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Aaron Kling
d904038ff4