ipv4: add 'ipv4_multiple_ip4' test
Check that NM can add mupltiple ip addresses via ip4 option.
https://bugzilla.redhat.com/show_bug.cgi?id=1482772
@Build:nm-1-10
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Check that NM can add mupltiple ip addresses via ip4 option.
https://bugzilla.redhat.com/show_bug.cgi?id=1482772
@Build:nm-1-10