Add serialization methods to hidden API light greylist

This patch adds a build-time rule that adds all members with signatures:
  readObject(Ljava/io/ObjectInputStream;)V
  readObjectNoData()V
  readResolve()Ljava/lang/Object;
  serialVersionUID:J
  serialPersistentFields:[Ljava/io/ObjectStreamField
  writeObject(Ljava/io/ObjectOutputStream;)V
  writeReplace()Ljava/lang/Object;
to the hidden API light greylist. This is needed so that apps can retain
the ability to write their own serializers.

Bug: 64382372
Bug: 73255398
Test: make
Change-Id: I0103f47044e957bbff0a39230ff53562f3feddac