Typo fix and adding condition on not checking docker SDK version
when container engine is not docker

This is a followup to Ic30b67daa2e215524096ad1f4385c569e3d41b95
Signed-off-by: Ivan Halomi <i.halomi@partner.samsung.com>
Change-Id: Iafa24db06ad46bcfe250451ed98bc3c48d8a5138