Enable Early Camping Feature

Bug: 189312225
Test: manual
Change-Id: I0bab215e06a96cac10ef5765cb78ebb840fb5a21
diff --git a/device.mk b/device.mk
index 06c79e6..aa49851 100644
--- a/device.mk
+++ b/device.mk
@@ -110,7 +110,7 @@
 
 # Enable Early Camping
 PRODUCT_PRODUCT_PROPERTIES += \
-	persist.vendor.ril.camp_on_earlier=0
+	persist.vendor.ril.camp_on_earlier=1
 
 # Carrier configuration default location
 PRODUCT_PROPERTY_OVERRIDES += \