hwc: Minor bug fixes.

Some minor bug fixes.

Change-Id: Ie8c2f58b9c6db6e77739e4693da503f6f963827d
diff --git a/libhwcomposer/hwc_video.h b/libhwcomposer/hwc_video.h
index 40a7c14..ec8fa21 100644
--- a/libhwcomposer/hwc_video.h
+++ b/libhwcomposer/hwc_video.h
@@ -41,7 +41,7 @@
     static bool configure(hwc_context_t *ctx, hwc_layer_1_t *yuvlayer,
             hwc_layer_1_t *ccLayer);
     //Marks layer flags if this feature is used
-    static void markFlags(hwc_layer_1_t *layer);
+    static void markFlags(hwc_layer_1_t *yuvLayer, hwc_layer_1_t *ccLayer);
     //returns yuv count
     static int getYuvCount();