v3dv: Add missing unlocks on errors.

v3dv: Add missing unlocks on errors.

Fix defects reported by Coverity Scan.

Missing unlock (LOCK)
missing_unlock: Returning without unlocking.

Fixes: a7052dcf2cf ("v3dv: enable multiple semaphores for csd job")
Fixes: ad09e50129e ("v3dv: enable multiple semaphores for tfu job")
Fixes: ff8586c3452 ("v3dv: enable multiple semaphores on cl submission")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14663>