Set platform data with ptimer source frequency. Removed ptimerscaling10x platform data, and use ptimer source frequency to calculate ptimerscaling factor. Reviewed-on: http://git-master/r/819031 (cherry picked from commit 6849603024943184b0463233bedd95934c353663) Change-Id: I14b0735fcb602cda2e692f6b842a5ecf469ab724 Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/827301 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>