linux-phytec-ti

dt-bindings: PCI: J721E: Add DT bindings for PCIe controller in J721E

Add device tree binding documentation for PCIe controller in J721E SoC.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>