Tuned ppd adjustments

[zacikpa]

This PR introduces small changes in and related to tuned-ppd:

• The daemon now has the option to log output into a file (the default is /var/log/tuned/tuned-ppd.log).
• The PID option was removed from the systems service file: the daemon currently does not write its PID anywhere.
• The spec file is adjusted to include standard systems scriptlet macros according to Fedora guidelines.
• When swapping power-profiles-daemon for tuned-ppd, scriptlets now check whether PPD is running and if yes, tuned-ppd is also started right away.

[zacikpa]

Added 3 more commits, most importantly an update which makes tuned-ppd recall a profile after being restarted.

[yarda]

Rawhide CI failure is unrelated.