staging: unisys: visorbus: Fix spelling mistake

Fixes a minor spelling mistake in a function comment.
Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorbus_main.c

@@ -143,7 +143,7 @@ struct bus_type visorbus_type = {
 };
 
 /**
- * visorbus_releae_busdevice() - called when device_unregister() is called for
+ * visorbus_release_busdevice() - called when device_unregister() is called for
  *                                the bus device instance, after all other tasks
  *                                involved with destroying the dev are complete
  * @xdev: struct device for the bus being released