drm/i915/selftests: Prepare igt_gem_utils for obj->mm.lock removal

igt_emit_store_dw needs to use the unlocked version, as it's not
holding a lock. This fixes igt_gpu_fill_dw() which is used by
some other selftests.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-51-maarten.lankhorst@linux.intel.com

drivers/gpu/drm/i915/gem/selftests/igt_gem_utils.c

@@ -55,7 +55,7 @@ igt_emit_store_dw(struct i915_vma *vma,
 	if (IS_ERR(obj))
 		return ERR_CAST(obj);
 
-	cmd = i915_gem_object_pin_map(obj, I915_MAP_WC);
+	cmd = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WC);
 	if (IS_ERR(cmd)) {
 		err = PTR_ERR(cmd);
 		goto err;