misc: pci_endpoint_test: Add deviceID for AM64 and J7200

Add device ID specific to AM64 and J7200 in pci_endpoint_test so that
endpoints configured with those deviceIDs can use pci_endpoint_test
driver.

Link: https://lore.kernel.org/r/20210811123336.31357-6-kishon@ti.com


Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>