fix sim build

Change-Id: Ide300eafbcbbc6dfae25fe86188302c6676c4a3b
diff --git a/libpixelflinger/codeflinger/texturing.cpp b/libpixelflinger/codeflinger/texturing.cpp
index ba13fb3..6baa28e 100644
--- a/libpixelflinger/codeflinger/texturing.cpp
+++ b/libpixelflinger/codeflinger/texturing.cpp
@@ -25,7 +25,9 @@
 
 #include "codeflinger/GGLAssembler.h"
 
+#ifdef __arm__
 #include <machine/cpu-features.h>
+#endif
 
 namespace android {