Temporarily disable cpu detection in libvpx

CPU_DETECTION doesn't work in current build yet, it caused building errors
with neon build, disable it for now. Will discuss the future plan with the
team.

TBR=stefan
BUG=
TEST=
Review URL: https://webrtc-codereview.appspot.com/570006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2218 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/third_party/libvpx/source/config/linux/arm-neon/vpx_config.asm b/third_party/libvpx/source/config/linux/arm-neon/vpx_config.asm
index ea83b9b..5c724d8 100644
--- a/third_party/libvpx/source/config/linux/arm-neon/vpx_config.asm
+++ b/third_party/libvpx/source/config/linux/arm-neon/vpx_config.asm
@@ -46,7 +46,7 @@
 .equ CONFIG_MD5 ,  1
 .equ CONFIG_DEQUANT_TOKENS ,  0
 .equ CONFIG_DC_RECON ,  0
-.equ CONFIG_RUNTIME_CPU_DETECT ,  1
+.equ CONFIG_RUNTIME_CPU_DETECT ,  0
 .equ CONFIG_POSTPROC ,  1
 .equ CONFIG_MULTITHREAD ,  1
 .equ CONFIG_INTERNAL_STATS ,  0
diff --git a/third_party/libvpx/source/config/linux/arm-neon/vpx_config.h b/third_party/libvpx/source/config/linux/arm-neon/vpx_config.h
index 127029d..ebf7531 100644
--- a/third_party/libvpx/source/config/linux/arm-neon/vpx_config.h
+++ b/third_party/libvpx/source/config/linux/arm-neon/vpx_config.h
@@ -54,7 +54,7 @@
 #define CONFIG_MD5 1
 #define CONFIG_DEQUANT_TOKENS 0
 #define CONFIG_DC_RECON 0
-#define CONFIG_RUNTIME_CPU_DETECT 1
+#define CONFIG_RUNTIME_CPU_DETECT 0
 #define CONFIG_POSTPROC 1
 #define CONFIG_MULTITHREAD 1
 #define CONFIG_INTERNAL_STATS 0