Correct the referencing of an argument search_sites

While referencing the argument 'search_sites' in functions
av1_make_default_fullpel_ms_params() and av1_set_mv_search_method(),
the size of this array is used as NUM_SEARCH_METHODS instead of
allocated size NUM_DISTINCT_SEARCH_METHODS. This CL corrects the same
for better understanding.

BUG=aomedia:3205

Change-Id: I1a6c20f1755b2e920638941df2cc93268d94cbb2
(cherry picked from commit 67dc8da7228a1b6b93581ef35fdb477e9fe53bf6)

av1/encoder/mcomp.c

diff --git a/av1/encoder/mcomp.c b/av1/encoder/mcomp.c
index ef7cb1f..5a308a2 100644
--- a/av1/encoder/mcomp.c
+++ b/av1/encoder/mcomp.c
@@ -94,7 +94,7 @@
 void av1_make_default_fullpel_ms_params(
     FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const struct AV1_COMP *cpi,
     const MACROBLOCK *x, BLOCK_SIZE bsize, const MV *ref_mv,
-    const search_site_config search_sites[NUM_SEARCH_METHODS],
+    const search_site_config search_sites[NUM_DISTINCT_SEARCH_METHODS],
     int fine_search_interval) {
   const MV_SPEED_FEATURES *mv_sf = &cpi->sf.mv_sf;
 

av1/encoder/mcomp.h

diff --git a/av1/encoder/mcomp.h b/av1/encoder/mcomp.h
index b2539f5..20ec34f 100644
--- a/av1/encoder/mcomp.h
+++ b/av1/encoder/mcomp.h
@@ -209,7 +209,7 @@
 void av1_make_default_fullpel_ms_params(
     FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const struct AV1_COMP *cpi,
     const MACROBLOCK *x, BLOCK_SIZE bsize, const MV *ref_mv,
-    const search_site_config search_sites[NUM_SEARCH_METHODS],
+    const search_site_config search_sites[NUM_DISTINCT_SEARCH_METHODS],
     int fine_search_interval);
 
 /*! Sets the \ref FULLPEL_MOTION_SEARCH_PARAMS to intra mode. */
@@ -238,7 +238,7 @@
 // Mv beyond the range do not produce new/different prediction block.
 static INLINE void av1_set_mv_search_method(
     FULLPEL_MOTION_SEARCH_PARAMS *ms_params,
-    const search_site_config search_sites[NUM_SEARCH_METHODS],
+    const search_site_config search_sites[NUM_DISTINCT_SEARCH_METHODS],
     SEARCH_METHODS search_method) {
   // Array to inform which all search methods are having
   // same candidates and different in number of search steps.