Fix typo in sssx name, there should be three letters 's'.
Acked-by: NRob Herring <robh@kernel.org>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NKamil Konieczny <k.konieczny@partner.samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>