Modify GenFds tools, which add one check for the return value of calling external tool.
Modify GenFds tools, which add one check for the return value of calling external tool.

git-svn-id: 5648d1bec6962b0a6d1d1b40eba8cf5cdb62da3d@3249 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2