XHCI: Separate PORT and CAPs macros into dedicated file

[ Upstream commit c35ba0ac ]

Split the PORT and CAPs macro definitions into a separate file to
facilitate sharing with other files without the need to include the entire
xhci.h.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240124152525.3910311-2-Frank.Li@nxp.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 705e3ce3 ("usb: dwc3: core: Fix system suspend on TI AM62 platforms")
Signed-off-by: Sasha Levin <sashal@kernel.org>