initial s2w dt2w code import from @showp1984

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
D2W/S2W implementation for XSP

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Updated The config

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
dt2w fixes

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>