[Telephony] Fix the unknown value of ARFCN from -1 to INT.MAX

Bug: 181792548
Test: atest CellIdentityTest, atest CtsTelephonyTestCases:android.telephony.cts.PhysicalChannelConfigTest
Change-Id: Idb22afc743e81d2fe38f0be683aeb7ca3398aa50
3 files changed