Add ifdef for scale functions on dsp2

BUG=none
TEST=none
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/6159004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@919 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 918
+Version: 919
 License: BSD
 License File: LICENSE
 

include/libyuv/scale_row.h

@@ -48,7 +48,7 @@ extern "C" {
 
 // The following are available on Mips platforms:
 #if !defined(LIBYUV_DISABLE_MIPS) && !defined(__native_client__) && \
-    defined(__mips__)
+    defined(__mips__) && defined(__mips_dsp) && (__mips_dsp_rev >= 2)
 #define HAS_SCALEROWDOWN2_MIPS_DSPR2
 #define HAS_SCALEROWDOWN4_MIPS_DSPR2
 #define HAS_SCALEROWDOWN34_MIPS_DSPR2

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 918
+#define LIBYUV_VERSION 919
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT