vpx: increase decoder capability (refs #16836)

modules/codec/vpx.c

@@ -64,7 +64,7 @@ static block_t *Encode(encoder_t *p_enc, picture_t *p_pict);
 vlc_module_begin ()
     set_shortname("vpx")
     set_description(N_("WebM video decoder"))
-    set_capability("decoder", 60)
+    set_capability("decoder", 100)
     set_callbacks(OpenDecoder, CloseDecoder)
     set_category(CAT_INPUT)
     set_subcategory(SUBCAT_INPUT_VCODEC)