Michael Tretter authored Nov 26, 2021 and Daniel Stone committed Mar 03, 2023

Additional devices don't have a gbm device. Therefore, we cannot create gbm bos
for the cursor.

If the output device differs from the gbm device, fall back to the allocation of
a dumb buffer for the cursor on the output device. Update the cursor sprite with
a memcpy to the already mapped dumb buffer that belongs to the current cursor.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>