Support multiple RANs per signal strength request in telephony

Multiple RANs per request for setting signal strength reporting
critiria has been supported in Radio HAL 2.0 and in the
TelephonManager interface. With the support in telephony, devices
with new Radio HAL can take advantage of the new API to have
better performance.

Bug: 206857183
Test: atest SignalStrengthControllerTest GsmCdmaPhoneTest
Test: atest android.telephony.cts.SignalStrengthUpdateRequestTest
Test: atest
com.android.internal.telephony.SignalStrengthUpdateRequestTest
Test: atest ServiceStateTrackerTest  DeviceStateMonitorTest
Test: Manual sanity test related to signal strength, including
go/signalstrength-s-ft
Test: atest VtsHalRadioTargetTest
(RadioNetworkTest#setSignalStrengthReportingCriteria_xxx) on two
products support radio hal 1.6 and 2.0

Merged-In: I627c528bffb2d731fac0cd0f07ef6c442dc0a824
Change-Id: I627c528bffb2d731fac0cd0f07ef6c442dc0a824
(cherry picked from commit e2c7eea7)