It is useful to control I²S bus 2 pins if we would like to connect
an audio codec.
Reported-by: Nmouse <xllacyx@gmail.com>
Reported-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: NMika Westerberg <mika.westerberg@linux.intel.com>