MFC 205980:
MFC 205980:

  Stop hard coding i386 as the arch for the build.  Instead, default to the
  processor we're running on.  Also, supply amd64 version of create_diskimage
  that's the same as i386's.

  # didn't fix the confusion between using the processor for this and using
  # the machine (which would be more appropriate).  NANO_ARCH smashes the two
  # together right now.

  MFC after:	7 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase