cassini-[config,distro,tests]: Fix qa-checks failures

ewaol-[config,distro]: Fix qa-check failures

Enable qa-check on both meta-cassini and meta-ewaol and fix the issues
identified.

Signed-off-by: Devaraj Ranganna <devaraj.ranganna@arm.com>
Change-Id: Icc15c5393d765a26c831ecc67ede68e286c68af5