libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_frame_buffers.c

Index: source/libvpx/vp9/common/vp9_frame_buffers.c
diff --git a/source/libvpx/vp9/common/vp9_frame_buffers.c b/source/libvpx/vp9/common/vp9_frame_buffers.c
index 34795b74ec2199172fa0dd06086643c1c2014f73..0f41d66985f3a1c4a3e4b86f6bb6cccb08a67c23 100644
--- a/source/libvpx/vp9/common/vp9_frame_buffers.c
+++ b/source/libvpx/vp9/common/vp9_frame_buffers.c
@@ -64,7 +64,7 @@ int vp9_get_frame_buffer(void *cb_priv, size_t min_size,
     // This memset is needed for fixing valgrind error from C loop filter
     // due to access uninitialized memory in frame border. It could be
     // removed if border is totally removed.
-    vpx_memset(int_fb_list->int_fb[i].data, 0, min_size);
+    memset(int_fb_list->int_fb[i].data, 0, min_size);
     int_fb_list->int_fb[i].size = min_size;
   }