Changes

pySim-prog: treat --imsi and --iccid equally

When using a CSV file, we can either read the IMSI or ICCID from the
CSV file before programming. However, should also be possible to
supply both manually to identify the CSV file entry using the --imsi
or --iccid option. This currently only works for the IMSI, but not
for the ICCID.

Related: SYS#4120
Change-Id: Id3083c7794a7bd59501997f22afdc23bad3069e6