Home (showdesktop) button sometimes did not load the icon because
the active state was never initialized. Backport fix for this issue.
[YOCTO #9026]
(From OE-Core rev: 556da4760e2bf4afa1c825b927b62314174632eb)
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>