libvpx: Pull from upstream

source/libvpx/vpx_ports/vpx_ports.mk

Index: source/libvpx/vpx_ports/vpx_ports.mk
===================================================================
--- source/libvpx/vpx_ports/vpx_ports.mk	(revision 0)
+++ source/libvpx/vpx_ports/vpx_ports.mk	(revision 0)
@@ -0,0 +1,26 @@
+##
+##  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+##
+##  Use of this source code is governed by a BSD-style license
+##  that can be found in the LICENSE file in the root of the source
+##  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.
+##
+
+
+PORTS_SRCS-yes += vpx_ports.mk
+
+PORTS_SRCS-$(BUILD_LIBVPX) += asm_offsets.h
+PORTS_SRCS-$(BUILD_LIBVPX) += mem.h
+PORTS_SRCS-$(BUILD_LIBVPX) += vpx_timer.h
+
+ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
+PORTS_SRCS-$(BUILD_LIBVPX) += emms.asm
+PORTS_SRCS-$(BUILD_LIBVPX) += x86.h
+PORTS_SRCS-$(BUILD_LIBVPX) += x86_abi_support.asm
+PORTS_SRCS-$(BUILD_LIBVPX) += x86_cpuid.c
+endif
+
+PORTS_SRCS-$(ARCH_ARM) += arm_cpudetect.c
+PORTS_SRCS-$(ARCH_ARM) += arm.h