meta-phytec

fsl: recipes-devtools: add supporting files for Node.js 6.10 and Java 8

    - Node.js files from morty branch of meta-nodejs
    - relative-symlinks.bbclass is from the meta-vesta morty branch:
      it was needed in order to support rocko branch of meta-java on morty
      build (GG uses Java 8 only)

Signed-off-by: Jamie Santos <jsantos@phytec.com