webos.inc: Update SANITY_TESTED_DISTROS for oe-core "dylan"

* DistributorId-Release is now checked instead of description

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>

Change-Id: I14d64eda753931cc5554ceb3ccd82e86441a7c6d
Reviewed-on: https://g2g.palm.com/2216
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Tested-by: Martin Jansa <Martin.Jansa@lge.com>