meta-ibm: Mihawk fan control support GPU thermal sensor

Mihawk can use GPU, so fan control must support GPU thermal sensor.

Tested: Fan speed is automatically controlled when using GPU

Change-Id: Ic749df499fd53ce84e3d1f0a069a4bb2e946b221
Signed-off-by: Ben Pai <Ben_Pai@wistron.com>
1 file changed