Change vp9_ prefix function names in vpx_scale to vpx_

Change-Id: Iac85902cbbb3e752801dc85de9a3c778e47304aa
diff --git a/vpx_scale/vpx_scale_rtcd.pl b/vpx_scale/vpx_scale_rtcd.pl
index ab6de62..56b952b 100644
--- a/vpx_scale/vpx_scale_rtcd.pl
+++ b/vpx_scale/vpx_scale_rtcd.pl
@@ -23,10 +23,10 @@
 add_proto qw/void vpx_yv12_copy_y/, "const struct yv12_buffer_config *src_ybc, struct yv12_buffer_config *dst_ybc";
 
 if ((vpx_config("CONFIG_VP9") eq "yes") || (vpx_config("CONFIG_VP10") eq "yes")) {
-    add_proto qw/void vp9_extend_frame_borders/, "struct yv12_buffer_config *ybf";
-    specialize qw/vp9_extend_frame_borders dspr2/;
+    add_proto qw/void vpx_extend_frame_borders/, "struct yv12_buffer_config *ybf";
+    specialize qw/vpx_extend_frame_borders dspr2/;
 
-    add_proto qw/void vp9_extend_frame_inner_borders/, "struct yv12_buffer_config *ybf";
-    specialize qw/vp9_extend_frame_inner_borders dspr2/;
+    add_proto qw/void vpx_extend_frame_inner_borders/, "struct yv12_buffer_config *ybf";
+    specialize qw/vpx_extend_frame_inner_borders dspr2/;
 }
 1;