Configure MSE E1 channel clock mode. When 'syncToSystem' is configured, the line clock is synchronized to NE Clock. When 'syncToLine' is configured, the line clock is synchronized to each E1 channel. When 'syncToPw' is configured, the line clock is synchronized to Adaptive Clock which is extracted from PWE packet. And if the line is referenced from other line (configured by 'provMseClockACRLineSelect'), the system rejects the request to change the 'provMseClockModeType' to the other mode.