John Wang 2ea7e443b2 Add getImei() to Phone interface.
Need IMEI to be displayed in LTE Settings. Since getDeviceId() returns MEID for LTE device,
getImei() is added to return IMEI for all devices. getImei returns null if not set (as SipPhone).

bug:4983512
Change-Id: Idfe2ec8de514f330248db7a9de7e241f9a38cb96
2011-07-11 17:00:16 -07:00
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2011-07-11 17:00:16 -07:00