Deprecated getDeviceId and added getMeid and getImei

Added two new public APIs getMeid and getImei. Deprecated the exisintg
getDeviceId API because it can't return a constant id when phone type
changes.

Test: CTS and manual
bug: 34233620, 10831289

Change-Id: If3b87f071e1e38d19008bdea3d7401802d72f5ad