[mpd/f29] (5 commits) ...Update to 0.21.15

Summary of changes: 2b3d655... Rebuild for libsidplayfp-2.0.0 (rfbz #5374) (*) 8594bca... Rebuild for new libnfs version (*) 4b37eae... Drop br libsidplayfp-devel for el8 until it's packaged (*) 7609c95... Disable libsidplayfp-devel for el8 (*) 5f8aed6... Update to 0.21.15 (*) (*) This commit already existed in another branch; no separate mail sent