ipa-replica-install: password and admin-password options mutually exclusive
Currently it is possible to run ipa-replica-install in one step,
and provide --password and --admin-password simultaneously.
This is confusing as --password is intended for one-time pwd
when the ipa-replica-install command is delegated to a user
who doesn't know the admin password.
The fix makes --password and --admin-password options
Reviewed-By: Christian Heimes <firstname.lastname@example.org>