conf: device: compare drive address fields separately

conf: device: compare drive address fields separately

Commit 3210c8b04 introduced a separate field 'diskbus' for
internal use by the commandline formatter.

Adjust the check for address equality to compare the relevant
fields separately instead of the whole struct.

This means that the changes of the 'diskbus' field added
in commit 03ed14d2d4 no longer affect the outcome of the address
equality check.

https://bugzilla.redhat.com/show_bug.cgi?id=2023605

Fixes: 3210c8b047534f7e1d3ccde7ea3bcf11e7c92ad9
Fixes: 03ed14d2d4a4e51568b1ee5a6e6c9c3371bb4d34
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>