debug_util: increase QUEUE_MAX_SIZE

This is a workaround for encoding 150 frames with --rt --cpu-used=5.

Bug: aomedia:3434
Fixed: aomedia:3434
Change-Id: I8c52fcb4909fb748ee5fea056a43768ede6cb99f

aom_util/debug_util.c

diff --git a/aom_util/debug_util.c b/aom_util/debug_util.c
index 3e9c314..7b24550 100644
--- a/aom_util/debug_util.c
+++ b/aom_util/debug_util.c
@@ -32,7 +32,7 @@
 int aom_bitstream_queue_get_frame_read(void) { return frame_idx_r; }
 
 #if CONFIG_BITSTREAM_DEBUG
-#define QUEUE_MAX_SIZE 2000000
+#define QUEUE_MAX_SIZE 4000000
 static int result_queue[QUEUE_MAX_SIZE];
 static int nsymbs_queue[QUEUE_MAX_SIZE];
 static aom_cdf_prob cdf_queue[QUEUE_MAX_SIZE][16];