Revert "Revert "Fix the roaming searching text display in standby screen""

* This reverts commit 28d9c73f but allows
  a device to opt for the reverted commit's behavior by setting
  ro.ril.force_eri_from_xml=true

* The reverted commit seems to break some devices that use mcc/mnc overlays
  for eri.xml while at the same time fixing some that use a standard eri.xml
  overlay.

Change-Id: If46f8e378d68657320d26874d06fb7fc39421326