refactor: DKMS RPM

[jerzyjamroz]

@mdavidsaver , I did refactoring as follows:

• dkms changed to dkms-rpm - it will distinguish once we add dkms-deb or Yocto build.
• The package will be named: mrfioc2-dkms.
• The control variables are exposed now so it is easier to configure the package (it can be adjusted in the future once more builds are added.)
• Version 3 (plus arch and dist tags) of the kmod added.
• FIXME: - minimal update just with one printk (it requires more time to review all).
• The failing kernel-build was removed from the push action (it has to be executed manually now). It avoids too many error messages.
• The packages are planned to be released probably together with the release (not done yet).

[jerzyjamroz]

@lucmaga , just the lookup to our conversation.

[gabrielfedel]

One last question, would that change generate an automatic rpm on the CI ?