soundwire: select REGMAP_SOUNDWIRE

SoundWire bus needs to select the regmap support. So, add it
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/soundwire/Kconfig

@@ -18,6 +18,7 @@ comment "SoundWire Devices"
 
 config SOUNDWIRE_BUS
 	tristate
+	select REGMAP_SOUNDWIRE
 
 config SOUNDWIRE_CADENCE
 	tristate