set provisioning Url

        Args:
            strURL: Provisioning Url string

        Returns:
            True: successful to set provisioning Url
            False: fail to set provisioning Url

def setProvisioningUrl(self, strURL='grl.com'):
        """set provisioning Url

        Args:
            strURL: Provisioning Url string

        Returns:
            True: successful to set provisioning Url
            False: fail to set provisioning Url
        """
        print '%s call setProvisioningUrl' % self.port
        self.provisioningUrl = strURL
        if self.deviceRole == Thread_Device_Role.Commissioner:
            cmd = WPANCTL_CMD + 'setprop Commissioner:ProvisioningUrl %s' %(strURL)
            print cmd
            return self.__sendCommand(cmd)[0] != "Fail"
        return True