The submodule is mostly used for building against, not
for editing.

On most cases, its internal status is not interesting,
and git scans it for no reason.

Change-Id: Ic290bd78fdb6704a15264a022125c99cf006a0db
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

Change-Id: I24952ea89519cf37c021d79f480c1ae907789161
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>