USB: pd: Restart host mode in high speed if no usb3 & dp concurrency

It is required to restart usb host mode in high speed on platforms not
supporting usb3 ss and DP concurrency. Hence add required support to
restart host mode in high speed for those platforms, when dp is
detected through discovery of svids.

Change-Id: I1bbd9679b9354828d751ed74ef5d99cb8541e698
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
Signed-off-by: Chetan C R <cchinnad@codeaurora.org>