Move more properties out of exported3_default_prop

This is to remove exported3_default_prop. Contexts of these properties
are changed.

- ro.boot.wificountrycode
This becomes wifi_config_prop

- ro.opengles.version
This becomes graphics_config_prop. Also it's read by various domains, so
graphics_config_prop is now readable from coredomain.

- persist.config.calibration_fac
This becomes camera_calibration_prop. It's only readable by appdomain.

Bug: 155844385
Test: no denials on Pixel devices
Test: connect wifi
Change-Id: If2b6c10fa124e29d1612a8f94ae18b223849e2a9
diff --git a/private/app.te b/private/app.te
index 546b019..5b079c2 100644
--- a/private/app.te
+++ b/private/app.te
@@ -54,3 +54,6 @@
 
 # Allow to read graphics related properties.
 get_prop(appdomain, graphics_config_prop)
+
+# Allow to read persist.config.calibration_fac
+get_prop(appdomain, camera_calibration_prop)