Platform/Intel: Add WhitleyOpenBoardPkg to build_bios.py

Signed-off-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
Co-authored-by: Isaac Oram <isaac.w.oram@intel.com>
Co-authored-by: Mohamed Abbas <mohamed.abbas@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Isaac Oram <isaac.w.oram@intel.com>
Cc: Mohamed Abbas <mohamed.abbas@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Michael Kubacki <Michael.Kubacki@microsoft.com>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Isaac Oram <isaac.w.oram@intel.com>