Add RPM specs for acpi_call-kmod(-common)

[cr7pt0gr4ph7]

Adds the Fedora RPM specs for publishing acpi_call as an akmod package (basically Fedora's alternative to DKMS).

• Example builds of the RPM can be found here:
  https://copr.fedorainfracloud.org/coprs/cr7pt0gr4ph7/acpi_call/

• Actual installation (and thus compilation) of the RPM can be found here¹:
  https://github.com/cr7pt0gr4ph7/akmods/actions

The intent is to contribute both the RPM build and the pre-built image creation to https://copr.fedorainfracloud.org/coprs/ublue-os/akmods/ and https://github.com/ublue-os/akmods, respectively, so that other users of Bluefin can benefit from it, too. Please kindly refer to ublue-os/akmods#327 for the corresponding PR.

Footnotes

1. Note: The failure of the coreos 42 builds is not caused by acpi_call, but by there not yet being a suitable kernel version being published in the Fedora upstream; the build failure is also present in the ublue-os/akmods upstream repository. ↩