Cellular data stall recovery based on networkStatus

This CL introduces cellular data stall recovery based on
network validation result. It still re-uses the existing
recovery steps but the triggers are based on networkStatus
from NetworkMonitor when the network is bad. Each recovery
step is spaced by a configurable grace period (default 3 mins)
to avoid back to back recovery.

This feature is controlled by the following settings. If this
feature is enabled then the legacy data stall detection based
on TrafficStats will automatically be disabled.

Settings.Global.DATA_STALL_RECOVERY_ON_BAD_NETWORK
1 => Enabled (default)
0 => Disabled

Settings.Global.MIN_DURATION_BETWEEN_RECOVERY_STEPS_IN_MS
3 minutes is default value

Bug: 113916551
Test: atest FrameworksTelephonyTests:com.android.internal.telephony.dataconnection.DcTrackerTest

Change-Id: I738fc7ed08803de1114f7a3d79bf278449e94ea8