KabylakeOpenBoardPkg: Auto configure Fsp*BaseAddress PCD

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1863



PcdFsp*BaseAddress now will be updated in FDF basing
on flash map.
DSC will only define types of those PCDs and always
having 0 as default.

Test: internal platform booted with this patch.

Cc: Michael Kubacki <michael.a.kubacki@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>