usb: tegra: xhci: write prod settings from dt

usb: tegra: xhci: write prod settings from dt

Read prod settings from device tree and write using prod
settings apis. Remove all prod settings done within driver.
Portmap will still be programmed from driver.

Bug 1567693

Change-Id: Id560a6052e96772ca41843b23300a242a9f934d2
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Reviewed-on: http://git-master/r/601853
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Daniel Fu <danifu@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>