As per GSMA specification TS37, below Primary IMEI requirements are mandatory to support
-TS37_2.2_REQ_5
-TS37_2.2_REQ_8 (Attached the document has description about this test cases)
Bug: 341006304
Test: atest MobileNetworkImeiPreferenceControllerTest
Change-Id: I839440de7d2680d21832dce6d0d56db992796fca