Can't dial Emergency call when user turn on airplane mode.

STEPS TO REPRODUCE:
1.Insert double sim card
2.open airplane mode
3.Dial emergency call

EXPECTED RESULTS:
Turn on airplane mode,dial Emergency call.

OBSERVED RESULTS:
The state of RadioState and ServiceState are out of sync:
phone.getServiceStateTracker().isRadioOn() is true, but phone.getServiceState().getState() is ServiceState.STATE_POWER_OFF.

In this case, framework will throw CallStateException(because phone.getServiceState().getState() == ServiceState.STATE_POWER_OFF).

Bug: 120180814

Test case: open flight mode,dial Emergency call
Change-Id: Iff2bb442a818ca0ffc827317f46cfc571bffb6c3
diff --git a/src/com/android/services/telephony/TelephonyConnectionService.java b/src/com/android/services/telephony/TelephonyConnectionService.java
index f986994..8ae7b8a 100644
--- a/src/com/android/services/telephony/TelephonyConnectionService.java
+++ b/src/com/android/services/telephony/TelephonyConnectionService.java
@@ -433,7 +433,7 @@
                         // been powered on and isn't in the UNAVAILABLE state, even if it is
                         // reporting the OUT_OF_SERVICE state.
                         return (phone.getState() == PhoneConstants.State.OFFHOOK)
-                            || phone.getServiceStateTracker().isRadioOn();
+                            || phone.getServiceState().getState() != ServiceState.STATE_POWER_OFF;
                     } else {
                         // It is not an emergency number, so wait until we are in service and ready
                         // to make calls. This can happen when we power down the radio on bluetooth