add media.codec.update service

Add a service in mediaswcodec to load updated codecs,
and restrict it to userdebug/eng. Reuse existing
mediaextractor_update_service since the codec update
service is identical, this avoids adding a new one
for now as we may not need the service anymore
after switching to APEX.

Bug: 111407413
Bug: 117290290

Change-Id: Ia75256f47433bd13ed819c70c1fb34ecd5d507b4
diff --git a/private/service_contexts b/private/service_contexts
index 0645779..c2a4ca1 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -98,6 +98,7 @@
 media.extractor                           u:object_r:mediaextractor_service:s0
 media.extractor.update                    u:object_r:mediaextractor_update_service:s0
 media.codec                               u:object_r:mediacodec_service:s0
+media.codec.update                        u:object_r:mediaextractor_update_service:s0
 media.resource_manager                    u:object_r:mediaserver_service:s0
 media.sound_trigger_hw                    u:object_r:audioserver_service:s0
 media.drm                                 u:object_r:mediadrmserver_service:s0