Add media performance class property to sepolicy

Bug: 175813535
Change-Id: Ic47e6b2871e8085808462070d8bd28b16c07839d
diff --git a/private/property_contexts b/private/property_contexts
index 134be15..98ac9bf 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -750,6 +750,7 @@
 ro.odm.build.date.utc            u:object_r:build_odm_prop:s0 exact int
 ro.odm.build.fingerprint         u:object_r:build_odm_prop:s0 exact string
 ro.odm.build.version.incremental u:object_r:build_odm_prop:s0 exact string
+ro.odm.build.media_performance_class   u:object_r:build_odm_prop:s0 exact int
 
 ro.product.odm.brand        u:object_r:build_odm_prop:s0 exact string
 ro.product.odm.device       u:object_r:build_odm_prop:s0 exact string