The ARM64 config file has been renamed in the commit
ae2f2fee24 ("build: rename linuxapp to linux in meson cross files").
Fixes: 99889bd852 ("ci: introduce Travis builds for GitHub repositories")
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Aaron Conole <aconole@redhat.com>