Creates an autofill system service.

BUG: 31001899
Test: manual
Change-Id: I8d462b40d931310eab26bafa09645ac88f13fc97
diff --git a/private/service_contexts b/private/service_contexts
index 9f133d4..ff9305b 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -9,6 +9,7 @@
 appwidget                                 u:object_r:appwidget_service:s0
 assetatlas                                u:object_r:assetatlas_service:s0
 audio                                     u:object_r:audio_service:s0
+autofill                                  u:object_r:autofill_service:s0
 backup                                    u:object_r:backup_service:s0
 batteryproperties                         u:object_r:batteryproperties_service:s0
 batterystats                              u:object_r:batterystats_service:s0