libvpx: Pull from upstream

source/config/linux/arm/vpx_config.c

Index: source/config/linux/arm/vpx_config.c
diff --git a/source/config/linux/arm/vpx_config.c b/source/config/linux/arm/vpx_config.c
index 336b29cfd0c7a03abff47574cd7a65b5499bf189..0b06ef9adf18e775dc1dc721f7aef658544c6605 100644
--- a/source/config/linux/arm/vpx_config.c
+++ b/source/config/linux/arm/vpx_config.c
@@ -5,5 +5,6 @@
 /* tree. An additional intellectual property rights grant can be found */
 /* in the file PATENTS.  All contributing project authors may */
 /* be found in the AUTHORS file in the root of the source tree. */
+#include "vpx/vpx_codec.h"
 static const char* const cfg = "--target=armv6-linux-gcc --enable-pic --enable-realtime-only --disable-install-bins --disable-install-libs --disable-edsp --enable-external-build --enable-postproc --disable-install-srcs --enable-multi-res-encoding --enable-temporal-denoising --disable-unit-tests --disable-install-docs --disable-examples --enable-vp9-temporal-denoising --enable-vp9-postproc --size-limit=16384x16384";
 const char *vpx_codec_build_config(void) {return cfg;}