stagefright aacenc: Use ARMv6 SSAT instruction

Change-Id: I652eaaa54e7766d9dca80fd8cc156ca481359471
diff --git a/media/libstagefright/codecs/aacenc/Android.mk b/media/libstagefright/codecs/aacenc/Android.mk
index 8318ba4..c2579c7 100644
--- a/media/libstagefright/codecs/aacenc/Android.mk
+++ b/media/libstagefright/codecs/aacenc/Android.mk
@@ -79,7 +79,7 @@
 endif
 
 ifeq ($(VOTT), v7)
-LOCAL_CFLAGS += -DARMV5E -DARMV7Neon -DARM_INASM -DARMV5_INASM
+LOCAL_CFLAGS += -DARMV5E -DARMV7Neon -DARM_INASM -DARMV5_INASM -DARMV6_INASM
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/src/asm/ARMV5E
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/src/asm/ARMV7
 endif