If a repo path is relative, append the kas work dir to it.
Background: The path ends up in bblayers.conf
Without this change the following example will fail:
--------------------------------------------------------
header:
version: 4
machine: qemux86
repos:
poky:
url: "https://git.yoctoproject.org/git/poky"
refspec: "rocko"
path: "thirdparty/poky"
layers:
meta:
meta-poky:
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Signed-off-by: Georg Lutz <georg@georglutz.de>