bink: use LOCAL_ALIGNED for aligned stack data

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 8997bb88)

libavcodec/bink.c

@@ -790,7 +790,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
     int v, col[2];
     const uint8_t *scan;
     int xoff, yoff;
-    DECLARE_ALIGNED(16, DCTELEM, block[64]);
+    LOCAL_ALIGNED_16(DCTELEM, block, [64]);
     int coordmap[64];
     int ybias = is_key ? -15 : 0;
     int qp;