[NORMATIVE] Fix condition for MFMV search window

The condition checking if a projection ends up within the 192x64 window is off by one.

BUG=aomedia:1643

Change-Id: I6af41c13a17411739c3a2154bce135970a052c4d

av1/common/mvref_common.c

diff --git a/av1/common/mvref_common.c b/av1/common/mvref_common.c
index e8bd56f..f2e0dcb 100644
--- a/av1/common/mvref_common.c
+++ b/av1/common/mvref_common.c
@@ -1080,9 +1080,9 @@
       col >= (cm->mi_cols >> 1))
     return 0;
 
-  if (row <= base_blk_row - (MAX_OFFSET_HEIGHT >> 3) ||
+  if (row < base_blk_row - (MAX_OFFSET_HEIGHT >> 3) ||
       row >= base_blk_row + 8 + (MAX_OFFSET_HEIGHT >> 3) ||
-      col <= base_blk_col - (MAX_OFFSET_WIDTH >> 3) ||
+      col < base_blk_col - (MAX_OFFSET_WIDTH >> 3) ||
       col >= base_blk_col + 8 + (MAX_OFFSET_WIDTH >> 3))
     return 0;