doc,ewaol-config,ewaol-distro: Updates for v0.2.3 patch release

Issue-Id: SCM-4067
Issue-Id: SCM-4066
Signed-off-by: Diego Sueiro <diego.sueiro@arm.com>
Change-Id: I7aeb812b468a62cd9719b35ed6745522f531286e
2 jobs for v0.2.3 in 24 seconds (queued for 4 seconds)
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