Migrate UnifiedEmail to AAPT2.

Test: make UnifiedEmail
Change-Id: I9d9a8bd9b22e8ca1e3fd4f68886f02321fa620d8
Merged-In: I9d9a8bd9b22e8ca1e3fd4f68886f02321fa620d8
(cherry picked from commit f1c7a0567e3a01ade7c978f4ab63de1847d7634c)
1 file changed