Update FIT_SIGNATURE from "_FIT_" to "_FIT_   "
Update FIT_SIGNATURE from "_FIT_" to "_FIT_   "


git-svn-id: 5648d1bec6962b0a6d1d1b40eba8cf5cdb62da3d@4047 6f19259b-4bc3-4df7-8a09-765794883524

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