Move superres 1D convolve functions to convolve.c

This is to ease integration with striped loop restoration

Change-Id: If10e16656a3fe42bcca3e7238e4e729c962f2bb8

av1/common/av1_rtcd_defs.pl

diff --git a/av1/common/av1_rtcd_defs.pl b/av1/common/av1_rtcd_defs.pl
index 1a16086..3bbcd70 100755
--- a/av1/common/av1_rtcd_defs.pl
+++ b/av1/common/av1_rtcd_defs.pl
@@ -50,6 +50,15 @@
 add_proto qw/void av1_convolve_vert/, "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int w, int h, const InterpFilterParams fp, const int subpel_x_q4, int x_step_q4, ConvolveParams *conv_params";
 specialize qw/av1_convolve_vert ssse3/;
 
+if (aom_config("CONFIG_FRAME_SUPERRES") eq "yes") {
+  if (aom_config("CONFIG_LOOP_RESTORATION") eq "yes") {
+    add_proto qw/void av1_convolve_horiz_rs/, "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int w, int h, const int16_t *x_filters, int interp_taps, const int x0_qn, const int x_step_qn";
+    if (aom_config("CONFIG_HIGHBITDEPTH") eq "yes") {
+      add_proto qw/void av1_highbd_convolve_horiz_rs/, "const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, int h, const int16_t *x_filters, int interp_taps, const int x0_qn, const int x_step_qn, int bd";
+    }
+  }
+}
+
 if (aom_config("CONFIG_HIGHBITDEPTH") eq "yes") {
   add_proto qw/void av1_highbd_convolve_init/, "void";
   specialize qw/av1_highbd_convolve_init sse4_1/;