Merge "Avoid NPE caused by null encodedBearerData in privateGetSubmitPdu"

        bearerData.userData = userData;

        byte[] encodedBearerData = BearerData.encode(bearerData);

        if (encodedBearerData == null) return null;

        if (Rlog.isLoggable(LOGGABLE_TAG, Log.VERBOSE)) {

            Rlog.d(LOG_TAG, "MO (encoded) BearerData = " + bearerData);

            Rlog.d(LOG_TAG, "MO raw BearerData = '" + HexDump.toHexString(encodedBearerData) + "'");

        }

        if (encodedBearerData == null) return null;

        int teleservice = bearerData.hasUserDataHeader ?

                SmsEnvelope.TELESERVICE_WEMT : SmsEnvelope.TELESERVICE_WMT;