lineage: Move all system props to PRODUCT_GENERIC_PROPERTIES

For Treble enabled devices, PRODUCT_PROPERTY_OVERRIDES puts props
added with that in /vendor/build.prop. While that's great for
device-specific properties, these are global Lineage properties
which are descriptive of the system side, so move them to the list
that gets populated into /system/build.prop.

Change-Id: I8bb3d0fe13188478d4f7dedc306740a40f44a3e8
diff --git a/config/telephony.mk b/config/telephony.mk
index ea04f9e..5c74c4c 100644
--- a/config/telephony.mk
+++ b/config/telephony.mk
@@ -13,10 +13,10 @@
     CellBroadcastReceiver
 
 # Default ringtone
-PRODUCT_PROPERTY_OVERRIDES += \
+PRODUCT_GENERIC_PROPERTIES += \
     ro.config.ringtone=Orion.ogg
 
 # Tethering - allow without requiring a provisioning app
 # (for devices that check this)
-PRODUCT_PROPERTY_OVERRIDES += \
+PRODUCT_GENERIC_PROPERTIES += \
     net.tethering.noprovisioning=true