Add YAML devicetree schemas for Xilinx QDMA Soft IP PCIe Root Port
Bridge version 3.0.

Link: https://lore.kernel.org/linux-pci/20240811022345.1178203-2-thippesw@amd.comSigned-off-by: Thippeswamy Havalige <thippesw@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>