Add hdmi_config_prop for hdmi properties

To remove bad context names.

Bug: 154885206
Bug: 155844385
Test: m selinux_policy
Change-Id: I5712bf836e07b3b26a51c3433234b986843076ea
diff --git a/private/property_contexts b/private/property_contexts
index f8e4fff..424209f 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -361,7 +361,10 @@
 
 persist.sys.dalvik.vm.lib.2     u:object_r:exported2_system_prop:s0 exact string
 persist.sys.media.avsync        u:object_r:exported2_system_prop:s0 exact bool
-persist.sys.hdmi.keep_awake     u:object_r:exported2_system_prop:s0 exact bool
+
+persist.sys.hdmi.keep_awake u:object_r:hdmi_config_prop:s0 exact bool
+ro.hdmi.device_type         u:object_r:hdmi_config_prop:s0 exact string
+ro.hdmi.wake_on_hotplug     u:object_r:hdmi_config_prop:s0 exact bool
 
 pm.dexopt.ab-ota                        u:object_r:exported_pm_prop:s0 exact string
 pm.dexopt.bg-dexopt                     u:object_r:exported_pm_prop:s0 exact string
@@ -420,9 +423,6 @@
 ro.gfx.driver.0        u:object_r:exported3_default_prop:s0 exact string
 ro.gfx.angle.supported u:object_r:exported3_default_prop:s0 exact bool
 
-ro.hdmi.device_type     u:object_r:exported3_default_prop:s0 exact string
-ro.hdmi.wake_on_hotplug u:object_r:exported3_default_prop:s0 exact bool
-
 ro.lmk.critical                 u:object_r:lmkd_config_prop:s0 exact int
 ro.lmk.critical_upgrade         u:object_r:lmkd_config_prop:s0 exact bool
 ro.lmk.debug                    u:object_r:lmkd_config_prop:s0 exact bool