QuarkPlatformPkg: Fix build errors
Fix build errors detected with GCC 4.8.4: local variable set but not
used!
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>