Revert "Revert to PV for AAC codec for FactoryROM."

This reverts commit d7d79a2bbf38d1d19ec7cc8d6a514fc999b5c444.

Change-Id: I7076feab31ab64fccd364699280d821011edc099
diff --git a/media/libstagefright/codecs/aacenc/Android.mk b/media/libstagefright/codecs/aacenc/Android.mk
index a18e49f..98e702e 100644
--- a/media/libstagefright/codecs/aacenc/Android.mk
+++ b/media/libstagefright/codecs/aacenc/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 include frameworks/av/media/libstagefright/codecs/common/Config.mk
 
-AAC_LIBRARY = visualon
+AAC_LIBRARY = fraunhofer
 
 LOCAL_SRC_FILES := basic_op/basicop2.c basic_op/oper_32b.c
 
@@ -90,7 +90,7 @@
 
 include $(CLEAR_VARS)
 
-ifneq ($(AAC_LIBRARY), visualon)
+ifeq ($(AAC_LIBRARY), fraunhofer)
 
   include $(CLEAR_VARS)