avcodec/videodsp: Make ff_emulated_edge_mc_16 static

Only ff_emulated_edge_mc_8() is used outside of lavc/videodsp.c.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/videodsp.h

@@ -36,7 +36,6 @@ void ff_emulated_edge_mc_ ## depth(uint8_t *dst, const uint8_t *src, \
                                    int src_x, int src_y, int w, int h);
 
 EMULATED_EDGE(8)
-EMULATED_EDGE(16)
 
 typedef struct VideoDSPContext {
     /**

libavcodec/videodsp_template.c

@@ -20,6 +20,10 @@
  */
 
 #include "bit_depth_template.c"
+#if BIT_DEPTH != 8
+// ff_emulated_edge_mc_8 is used by the x86 MpegVideoDSP API.
+static
+#endif
 void FUNC(ff_emulated_edge_mc)(uint8_t *buf, const uint8_t *src,
                                ptrdiff_t buf_linesize,
                                ptrdiff_t src_linesize,