Improvements to gen_robot_print.py.
Improvements to gen_robot_print.py.

  - sprint_vars:  Moved hex arg to be the first integer arg rather than the
    3rd.
  - sprint_pgm_header:  Make adjustment for change to sprint_vars.

Change-Id: I1eb5138975b965f4a870fbe27569313a187c84c1
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation