Fix ELN build failures
Since August of 2021, openal-soft has been failing to build in ELN.
ELN has the %{rhel} flag turned on and set to 10.
The packages in the %files examples section get built, whether SDL_sound-devel is enabled or not. Simply taking them out of the %files list does not work, they need to be excluded.
This pull request excludes the files so that builds are successful in ELN or RHEL.
Signed-off-by: Troy Dawson <tdawson@redhat.com>