V1: Add script to build UniversalPayload, which can be used after edksetup rebuild
The final UPL.elf will be located at root folder of edk2
V2: Revise the ouput directory of generated files and coding style in the script
Cc: Guo Dong <guo.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Bob Feng <bob.c.feng@intel.com>
Signed-off-by: Dun Tan <dun.tan@intel.com>
Tan, Dun