ntb: intel: add GNR support for Intel PCIe gen5 NTB

Add Intel Granite Rapids NTB PCI device ID and related enabling.
Expectation is same hardware interface as Saphire Rapids Xeon platforms.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>