Disabled GM20b idle clock slowdown during rate measurements. Change-Id: I20127c1f2816b7a8fe2f208eb21d2decc986d727 Signed-off-by: Alex Frid <afrid@nvidia.com> Reviewed-on: http://git-master/r/486324 Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>