gpu: host1x: Factor out __host1x_device_del()
gpu: host1x: Factor out __host1x_device_del()

This function is needed in several places, so factor it out.

Signed-off-by: Thierry Reding <3055038c414aef68bf32c33b8118623e7554e0f2@nvidia.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs