usb: cdns3: host: add xhci_plat_priv quirk XHCI_SKIP_PHY_INIT

stable inclusion
from stable-5.10.23
commit febf7d870371ea5b064299ddda2116600824c90c
bugzilla: 50838

--------------------------------

[ Upstream commit 68ed3f3d ]

cdns3 manages PHY by own DRD driver, so skip the management by
HCD core.

Reviewed-by: Jun Li <jun.li@nxp.com>
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by:   Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>