Create MobileNetworkSummaryRepository

For MobileNetworkSummaryController to use, so it no longer use
MobileNetworkRepository.

Fix: 366097262
Flag: EXEMPT refactor
Test: manual - on Network & internet
Test: atest MobileNetworkSummaryRepositoryTest
Change-Id: I8a9d52af8e230fc407a4339c27f73ef79d512b24
9 files changed