drm/vmwgfx: Merge vmw_bo_release and vmw_bo_free functions

drm/vmwgfx: Merge vmw_bo_release and vmw_bo_free functions

Some of the warnings need to be reordered between these two functions
in order to be correct. This has happened multiple times.
Merging them solves this problem once and for all.

Fixes: d6667f0ddf46 ("drm/vmwgfx: Fix handling of dumb buffers")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patch.msgid.link/20260107152059.3048329-1-ian.forbes@broadcom.com