Add oprofile host tool support for mips.

Provides general build support, and fixes one arm-specific change
in opannotate.

Change-Id: Ib4f8145719fb6b2a1e292b72c2bed044497c55c2
diff --git a/pp/Android.mk b/pp/Android.mk
index fa1cf6e..36f2b03 100644
--- a/pp/Android.mk
+++ b/pp/Android.mk
@@ -62,7 +62,7 @@
 
 LOCAL_STATIC_LIBRARIES := $(common_libs)
 LOCAL_C_INCLUDES := $(common_host_c_includes)
-LOCAL_CFLAGS := $(common_host_cflags)
+LOCAL_CFLAGS := $(common_host_cflags) $(common_host_extra_flags)
 LOCAL_LDLIBS := $(common_ldlibs)
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE:= opannotate