_eglAddDevice() is now only used to look up eglDevices, which means that the function name is a bit misleading. Since this function is only used for finding the eglDevice, it should also no longer support adding a device to the egl devices list. Signed-off-by: Robert Foss <rfoss@kernel.org> Reviewed-by: Adam Jackson <ajax@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23742>