BaseTools:Added arch output to build report

BaseTools:Added arch output to build report

BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=2016

Added arch output to build report so it's easy to tell
which arch is being generated. Useful when multiple versions
of a single module is being emitted for multiple archs.

This patch is going to Added arch output

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>