pci: Add TI K3 Cadence PCIe Controller

Add support for the Cadence PCIe Controller present on TI's K3 SoCs.
This driver is an adaptation of the Linux driver.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
4 files changed