PHY_TYPE_USB is undefined and was added as PHY_TYPE_USB2 and
PHY_TYPE_USB3 in 2fbbc96d (phy: Add PHY header file for DT x Driver
defines, 2014-11-04). Fix documentation to avoid misleading users.
Signed-off-by: NLiam Beguin <lvb@xiphos.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20211117003841.2030813-1-lvb@xiphos.comSigned-off-by: NVinod Koul <vkoul@kernel.org>