skalibs: Fix default path
skalibs: Fix default path

This aligns default path with default (root) path in busybox, which is

    /sbin:/usr/sbin:/bin:/usr/bin

Signed-off-by: Esben Haabendal <da90c138e4a9573086862393cde34fa33d74f6e5@haabendal.dk>

oe-lite/base,oe-lite/base,oe-lite/base,oe-lite/base,oe-lite/base,oe-lite/base