01fips: turn info calls into fips_info calls

01fips: turn info calls into fips_info calls

systemd lets stdout go to journal only. Usually, this is desired
behavior to ensure that plymouth does not get disrupted.

However in the 01fips case, the system has to halt when the integrity
check fails to satisfy FIPS requirements. So the user will not be able
to inspect the journal.

As this is special to the fips module, we introduce a fips_info() which
works like info(), but deviates the output to stderr when running with
systemd.

Reference: bsc#1164076