Merge generated greylists into final greylist.

With annotations for greylist entries, each java target generates it own
greylist.txt file. Merge all of these into the final greylist.txt.

Bug: 110868826
Test: m
Change-Id: I6a64c65000f1fd9f49e09b5b498bdccc3560d606
diff --git a/Android.mk b/Android.mk
index eddcada..88340e4 100644
--- a/Android.mk
+++ b/Android.mk
@@ -654,7 +654,7 @@
     "writeObject\(Ljava/io/ObjectOutputStream;\)V" \
     "writeReplace\(\)Ljava/lang/Object;"
 $(LOCAL_LIGHT_GREYLIST): $(LOCAL_SRC_ALL)
-	sort $(LOCAL_SRC_GREYLIST) $(LOCAL_SRC_VENDOR_LIST) \
+	sort $(LOCAL_SRC_GREYLIST) $(LOCAL_SRC_VENDOR_LIST) $(PRIVATE_GREYLIST_INPUTS) \
 	     <(grep -E "\->("$(subst $(space),"|",$(REGEX_SERIALIZATION))")$$" \
 	               $(LOCAL_SRC_PRIVATE_API)) \
 	     <(comm -12 <(sort $(LOCAL_SRC_REMOVED_API)) <(sort $(LOCAL_SRC_PRIVATE_API))) \