zenfone7: Add persist.vendor.sys.cta.security property context

W steringserviceg: type=1400 audit(0.0:187): avc:  denied  { read } for  name="u:object_r:vendor_system_prop:s0" dev="tmpfs" ino=13876 scontext=u:r:platform_app:s0:c512,c768 tcontext=u:object_r:vendor_system_prop:s0 tclass=file permissive=0 app=com.asus.gallery

Change-Id: I4aa57b0c7882c9dda681e508dfadb1d97b6f6541
Signed-off-by: micky387 <mickaelsaibi@free.fr>
diff --git a/sepolicy/vendor/property_contexts b/sepolicy/vendor/property_contexts
index d5d3a64..c46640b 100644
--- a/sepolicy/vendor/property_contexts
+++ b/sepolicy/vendor/property_contexts
@@ -13,6 +13,9 @@
 # Camera
 vendor.sys.asus.camprobe                                          u:object_r:vendor_asus_prop:s0
 
+# Gallery
+persist.vendor.sys.cta.security                                  u:object_r:vendor_asus_prop:s0
+
 # Fingerprint
 vendor.gf.debug.dump_bigdata_data                                 u:object_r:vendor_gx_fpd_prop:s0