Enabling BLE in airplane mode puts BluetoothManagerService in an
unexpected state which causes Bluetooth to be on when airplane mode
is disabled.
Also fixes a bug where a crash of a BLE client would trigger a restart
into ON mode.
Test: SL4A BleBackgroundScanTest:test_airplane_mode_disables_ble
Bug: 32140251
Bug: 32140271
Bug: 32369494
Change-Id: Ie65157e65c3a1ca914f567a7a0c631175d1e5835