Rename av1_write_coeffs_mb()

Change it to av1_write_intra_coeffs_mb() because it's only used by
intra mode.

Change-Id: Iff711857e80890e3756fd4faaf082bae431d2672
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 2034fc7..e9212b3 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -1440,7 +1440,7 @@
 
   const int is_inter = is_inter_block(mbmi);
   if (!is_inter) {
-    av1_write_coeffs_mb(cm, x, w, bsize);
+    av1_write_intra_coeffs_mb(cm, x, w, bsize);
   } else {
     int block[MAX_MB_PLANE] = { 0 };
     assert(bsize == get_plane_block_size(bsize, xd->plane[0].subsampling_x,
diff --git a/av1/encoder/encodetxb.c b/av1/encoder/encodetxb.c
index 1e86128..5e8bf0b 100644
--- a/av1/encoder/encodetxb.c
+++ b/av1/encoder/encodetxb.c
@@ -647,8 +647,8 @@
   aom_writer *w;
 } ENCODE_TXB_ARGS;
 
-void av1_write_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x,
-                         aom_writer *w, BLOCK_SIZE bsize) {
+void av1_write_intra_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x,
+                               aom_writer *w, BLOCK_SIZE bsize) {
   MACROBLOCKD *xd = &x->e_mbd;
   const int num_planes = av1_num_planes(cm);
   int block[MAX_MB_PLANE] = { 0 };
diff --git a/av1/encoder/encodetxb.h b/av1/encoder/encodetxb.h
index 1c48ff3..7cf0377 100644
--- a/av1/encoder/encodetxb.h
+++ b/av1/encoder/encodetxb.h
@@ -104,8 +104,8 @@
                           aom_writer *w, int blk_row, int blk_col, int plane,
                           int block, TX_SIZE tx_size);
 /*!\cond */
-void av1_write_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x,
-                         aom_writer *w, BLOCK_SIZE bsize);
+void av1_write_intra_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x,
+                               aom_writer *w, BLOCK_SIZE bsize);
 int av1_get_txb_entropy_context(const tran_low_t *qcoeff,
                                 const SCAN_ORDER *scan_order, int eob);
 void av1_update_txb_context(const AV1_COMP *cpi, ThreadData *td,