emulators/fuse-roms: fix fetch

The distfile hosting opus.rom went away, move it to a copy hosted
by the submitter.

While here bump the Fedora versions of the RPM containing the other
ROMs.

No differences to the resulting packge in this commit.

PR: 262918
(cherry picked from commit b7d29898307a1685200a7f5f8ff98222d1c99690)