PEL: Update UserData parser example
PEL: Update UserData parser example

Empty JSON dictionaries are ignored by the peltool code so put some data
in the example dictionary.

Signed-off-by: Matt Spinler <c000c989d08c98662d98f15448f11de169feb92d@us.ibm.com>
Change-Id: Ia52e590c4640e2ddd60c44eca25d260cc6f366c1

openbmc/phosphor-logging,openbmc/phosphor-logging,openbmc/phosphor-logging,openbmc/phosphor-logging