etnaviv: fix compile warnings

Fixes: e5cc66df ("etnaviv: Rework locking")
Fixes: 1456aa61 ("etnaviv: Rework resource status tracking")
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Jonathan Marek <jonathan@marek.ca>
49 jobs for !2393 with fix-compile-warning in 21 minutes and 22 seconds (queued for 7 seconds)
merge request