Writing this register was a workaround for icp priority
on older chipsets. No need to write this anymore as the
icp priotiy now comes from ICP itself. Though writing
this currently is functionally no-op, better to remove to
avoid any future conflicts with this register.
CRs-Fixed: 2722486
Change-Id: I06bf9f9706fd49145bad501dc4406cdfdf603392
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>