media: add codec2_config_prop

This covers properties required by codec2 hal clients/service

Bug: 181380463
Change-Id: I88f87d8693fa49beda0a26c6d0492a12177f108b
diff --git a/private/property_contexts b/private/property_contexts
index a3cd9e0..f408331 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -394,6 +394,8 @@
 
 keyguard.no_require_sim u:object_r:keyguard_config_prop:s0 exact bool
 
+media.c2.dmabuf.padding                      u:object_r:codec2_config_prop:s0 exact int
+
 media.recorder.show_manufacturer_and_model   u:object_r:media_config_prop:s0 exact bool
 media.stagefright.cache-params               u:object_r:media_config_prop:s0 exact string
 media.stagefright.enable-aac                 u:object_r:media_config_prop:s0 exact bool