Sync auto RIL property overrides with phone

Bug: 155995740
Change-Id: I1f738b8d7aa42aadfa09210fcc3d41a28b2b7657
diff --git a/shared/auto/device.mk b/shared/auto/device.mk
index 9f6f9d1..bb1d114 100644
--- a/shared/auto/device.mk
+++ b/shared/auto/device.mk
@@ -54,6 +54,7 @@
     keyguard.no_require_sim=true \
     ro.cdma.home.operator.alpha=Android \
     ro.cdma.home.operator.numeric=302780 \
+    ro.com.android.dataroaming=true \
     vendor.rild.libpath=libcuttlefish-ril.so \
 
 # vehicle HAL