Fix FtrLLCByPass usage in cache policies for Displayable resource

Description: When FtrLLCByPass is on, GMM should appropriately set SCF as per Ftr
support for that platform. Fixing GMM MOCS table for #16/17 when Ftr is set -

Change-Id: I3edaf50263214eae8c4cb1e22870e3083ae5ff20