drm/msm/mdp5: use devres-managed allocation for INTF data

Use devm_kzalloc to create INTF data structure. This allows us
to remove corresponding kfree() call.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/546163/
Link: https://lore.kernel.org/r/20230708010407.3871346-8-dmitry.baryshkov@linaro.org

drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c

@@ -616,11 +616,6 @@ static int mdp5_kms_init(struct drm_device *dev)
 
 static void mdp5_destroy(struct mdp5_kms *mdp5_kms)
 {
-	int i;
-
-	for (i = 0; i < mdp5_kms->num_intfs; i++)
-		kfree(mdp5_kms->intfs[i]);
-
 	if (mdp5_kms->rpm_enabled)
 		pm_runtime_disable(&mdp5_kms->pdev->dev);
 
@@ -741,7 +736,7 @@ static int interface_init(struct mdp5_kms *mdp5_kms)
 		if (intf_types[i] == INTF_DISABLED)
 			continue;
 
-		intf = kzalloc(sizeof(*intf), GFP_KERNEL);
+		intf = devm_kzalloc(dev->dev, sizeof(*intf), GFP_KERNEL);
 		if (!intf) {
 			DRM_DEV_ERROR(dev->dev, "failed to construct INTF%d\n", i);
 			return -ENOMEM;