Rename AOM_ENC/DEC_BORDER_IN_PIXELS

Cherry-picked from aom/master:
e2721a65cbfb5b560cd884d60eb17f53539df5f0

Change-Id: I4ade58be91e7bca0cc4f2bed98a43177d7f590a5
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 44b56bd..d822d09 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -6297,9 +6297,8 @@
            (mode_mv[NEARMV][ref_frame].as_int == INVALID_MV)));
 }
 
-#define LEFT_TOP_MARGIN ((AOM_ENC_BORDER_IN_PIXELS - AOM_INTERP_EXTEND) << 3)
-#define RIGHT_BOTTOM_MARGIN \
-  ((AOM_ENC_BORDER_IN_PIXELS - AOM_INTERP_EXTEND) << 3)
+#define LEFT_TOP_MARGIN ((AOM_BORDER_IN_PIXELS - AOM_INTERP_EXTEND) << 3)
+#define RIGHT_BOTTOM_MARGIN ((AOM_BORDER_IN_PIXELS - AOM_INTERP_EXTEND) << 3)
 
 // TODO(jingning): this mv clamping function should be block size dependent.
 static INLINE void clamp_mv2(MV *mv, const MACROBLOCKD *xd) {