x86: hevc_mc: use epel_hv 16-wide function

The epel_hv functions were still relying on only epel_hv 8-wide
being the maximum width instanciated.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/x86/hevcdsp_init.c

@@ -357,9 +357,9 @@ mc_rep_funcs(epel_v,12,  8, 32, sse4);
 mc_rep_funcs(epel_v,12,  8, 24, sse4);
 mc_rep_funcs(epel_v,12,  8, 16, sse4);
 mc_rep_funcs(epel_v,12,  4, 12, sse4);
-mc_rep_funcs(epel_hv, 8,  8, 64, sse4);
-mc_rep_funcs(epel_hv, 8,  8, 48, sse4);
-mc_rep_funcs(epel_hv, 8,  8, 32, sse4);
+mc_rep_funcs(epel_hv, 8, 16, 64, sse4);
+mc_rep_funcs(epel_hv, 8, 16, 48, sse4);
+mc_rep_funcs(epel_hv, 8, 16, 32, sse4);
 mc_rep_funcs(epel_hv, 8,  8, 24, sse4);
 mc_rep_funcs2(epel_hv,8,  8,  4, 12, sse4);
 mc_rep_funcs(epel_hv,10,  8, 64, sse4);