Allow mediatuner to get tuner.server.enable

Bug: 287520719
Test: start mediatuner
Change-Id: I582aac593e2419b6cae37522e6493744fe58240a
diff --git a/private/mediatuner.te b/private/mediatuner.te
index bfb264e..5871bea 100644
--- a/private/mediatuner.te
+++ b/private/mediatuner.te
@@ -20,6 +20,9 @@
 # Read ro.tuner.lazyhal
 get_prop(mediatuner, tuner_config_prop)
 
+# Read tuner.server.enable
+get_prop(mediatuner, tuner_server_ctl_prop)
+
 ###
 ### neverallow rules
 ###