sriovdp_config: Improvements and fixes
- do not fail sriovdp_config role if no PCI devices are matched by
grep (e.g. for the old pattern, no PCI devices in PCI domain 0);
- allow network interface names that don't start with 'en', e.g. em1,
p1p127;
- allow PCI devices on other domains than hardcoded '0000';
- Use full PCI address in /etc/pcidp/config.json for the newly allowed
PCI domains (this is also supported, see [1], but for covenience they
were left on default '0000');
[1] https://bugzilla.redhat.com/show_bug.cgi?id=
1770642
Change-Id: I117966a5530d4b1003154bf7cf8182986db112e8
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>