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vp9_reconintra: fix d45/d63 discrepancies

the final index in rows 2, 3 differ from vp8

Change-Id: I0fcea907b4ab44e266c0f1fd77b290d2236b280a

--- a/vp9/common/vp9_reconintra.c

+++ b/vp9/common/vp9_reconintra.c

@@ -418,19 +418,18 @@

   const int E = above[4];

   const int F = above[5];

   const int G = above[6];

-  const int H = above[7];

   (void)left;

   DST(0, 0) =             AVG2(A, B);

   DST(1, 0) = DST(0, 2) = AVG2(B, C);

   DST(2, 0) = DST(1, 2) = AVG2(C, D);

   DST(3, 0) = DST(2, 2) = AVG2(D, E);

+              DST(3, 2) = AVG2(E, F);  // differs from vp8

   DST(0, 1) =             AVG3(A, B, C);

   DST(1, 1) = DST(0, 3) = AVG3(B, C, D);

   DST(2, 1) = DST(1, 3) = AVG3(C, D, E);

   DST(3, 1) = DST(2, 3) = AVG3(D, E, F);

-              DST(3, 2) = AVG3(E, F, G);

-              DST(3, 3) = AVG3(F, G, H);

+              DST(3, 3) = AVG3(E, F, G);  // differs from vp8

 }

 static INLINE void d63_predictor(uint8_t *dst, ptrdiff_t stride, int bs,

@@ -467,7 +466,7 @@

   DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);

               DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);

                           DST(3, 2) = DST(2, 3) = AVG3(F, G, H);

-                                      DST(3, 3) = AVG3(G, H, H);

+                                      DST(3, 3) = H;  // differs from vp8

 }

 static INLINE void d45_predictor(uint8_t *dst, ptrdiff_t stride, int bs,