liblok: set the size for the correct structure.

(cherry picked from commit 4ed5bacc86e0137d9ace5a2ceda09c2393716793)

Signed-off-by: Andrzej Hunt <andrzej.hunt@collabora.com>

Conflicts:
	desktop/source/lib/init.cxx

Change-Id: Id79d76893bfc931334afd59b05ab96a31e441e02