Reset timer when a new weather service provider is selected

If a new weather service provider is selected, reset the timer so
the newly selected provider can process the weather update requests

Change-Id: I2d16000b0eb987c6d0985b465af3259a3619d8ef
TICKET: CYNGNOS-2364

cm/lib/main/java/org/cyanogenmod/platform/internal/CMWeatherManagerService.java

@@ -355,6 +355,7 @@ public class CMWeatherManagerService extends SystemService{
             mIsWeatherProviderServiceBound = false;
             //We can't talk to the current service anyway...
             mIsProcessingRequest = false;
+            mLastWeatherUpdateRequestTimestamp = -REQUEST_THRESHOLD_MILLIS;
             Slog.d(TAG, "Connection with " + name.flattenToString() + " has been closed");
         }
     };