thunderbolt: Correct function name in kernel-doc comment

Use correct name in kernel-doc of tb_switch_find_by_uuid().

Signed-off-by: Radion Mirchevsky <[e-mail]>
Signed-off-by: Mika Westerberg <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>

drivers/thunderbolt/switch.c

···
 }
 
 /**
- * tb_switch_find_by_link_depth() - Find switch by UUID
+ * tb_switch_find_by_uuid() - Find switch by UUID
  * @tb: Domain the switch belongs
  * @uuid: UUID to look for
  *