BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1786
commit b1e27d changed GENFW output folder from DEBUG to OUTPUT,
but that commit missed updating the buildreport.py for FwReportFileName.
This patch is going to fix this issue.
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>