usb: host: xhci-tegra: Add Tegra194 XHCI support

This commit adds Tegra194 XUSB host mode controller support. This is
very similar to the existing Tegra124/Tegra210/Tegra186 XHCI, except
  1. the number of ports and PHYs differs
  2. the IPFS wrapper being removed
  3. mailbox registers address changes

Signed-off-by: JC Kuo <jckuo@nvidia.com>
Link: https://lore.kernel.org/r/20191004162906.4818-3-jckuo@nvidia.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>