bus: mhi: host: pci_generic: Add definition for some VIDs

To make code neat and for convenience purpose, add definition for some
VIDs. Adding it locally until these VIDs are used in multiple places.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20221107112700.773-1-slark_xiao@163.com


Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>