PCI: versatile: Add DT docs for ARM Versatile PB PCIe driver
PCI: versatile: Add DT docs for ARM Versatile PB PCIe driver

Add binding documentation for the PCI controller found on Versatile PB
boards.

Signed-off-by: Rob Herring <fbb37eacae100e13076d5c4b46f06cfa4d6fa9f8@kernel.org>
Signed-off-by: Bjorn Helgaas <f10ec01be0c6b54271af5c550cd257810bdf3268@google.com>
Acked-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>
CC: Pawel Moll <9508d67e84a03f69673bee3bb7ec593a47efeb0d@arm.com>
CC: Mark Rutland <1db9dd262beaa64f35756dd39531d9747b7778bb@arm.com>
CC: Ian Campbell <ea71a0dcef14058f83aacb9a32bd3c02e11f589b@hellion.org.uk>
CC: Kumar Gala <383ef5577c6e1178b93f59ec8d0936f76d2a98c4@codeaurora.org>
KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs