base: core: fix typo 'can by' to 'can be'

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/core.c

@@ -2689,7 +2689,7 @@ static int device_move_class_links(struct device *dev,
 /**
  * device_move - moves a device to a new parent
  * @dev: the pointer to the struct device to be moved
- * @new_parent: the new parent of the device (can by NULL)
+ * @new_parent: the new parent of the device (can be NULL)
  * @dpm_order: how to reorder the dpm_list
  */
 int device_move(struct device *dev, struct device *new_parent,