Fix gcc compiler warnings in ref-mv

Change-Id: I129476e2b8294e660c64723cbc74eb055458c19c

av1/common/mvref_common.h

@@ -374,9 +374,9 @@ static INLINE void av1_set_ref_frame(MV_REFERENCE_FRAME *rf,
   }
 }
 
-static int16_t av1_mode_context_analyzer(const int16_t *const mode_context,
-                                         const MV_REFERENCE_FRAME *const rf,
-                                         BLOCK_SIZE bsize, int block) {
+static INLINE int16_t av1_mode_context_analyzer(
+    const int16_t *const mode_context, const MV_REFERENCE_FRAME *const rf,
+    BLOCK_SIZE bsize, int block) {
   int16_t mode_ctx = 0;
   int8_t ref_frame_type = av1_ref_frame_type(rf);