usb: tegra: xhci:Transfer utmi port to pmc in elpg

usb: tegra: xhci:Transfer utmi port to pmc in elpg

Program pmc for transfer of utmip ports to pmc
during elpg entry or exit.

Bug 1307598

Change-Id: Iabc250202e7e3386b18889a136cdf2f04c27698f
Signed-off-by: Rohith Seelaboyina <rseelaboyina@nvidia.com>
Reviewed-on: http://git-master/r/265536
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jui Chang Kuo <jckuo@nvidia.com>
Reviewed-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>