- Add BuildRequires: pkgconfig(libcap) since it's being searched
by the build scripts.
- Replace BuildRequires: pkgconfig(libopenaptx) with libfreeaptx
since openaptx has a license issue
- Use bcond_with to enable/disable the usage of libcamera
(the defaults are not changed: it's disabled in Leap since
upstream doesn't recommend enabling it yet and enabled in TW
since we can allow some experimental support there)
- Changes suggested by darix.