doc,ewaol-config,ewaol-distro: Updates for v0.2.4 patch release

Issue-Id: SCM-4188
Signed-off-by: Diego Sueiro <diego.sueiro@arm.com>
Change-Id: Ib70ea26d54c876bdb9cba6d75413fa15b9665578
2 jobs for v0.2.4 in 24 seconds
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