Add defaults for build-related settings in OSInfo

They will end up being used when doing a standalone build.

[GF-2777] nyx-modules: Support new build-related bitbake variables

Open-webOS-DCO-1.0-Signed-off-by: Pekka Ropo <pekka.ropo@palm.com>
Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@lge.com>

Change-Id: I6b8513a2f4cfa380e54fa38487a602a4493f1af6
Reviewed-on: https://g2g.palm.com/1777
Reviewed-by: Build Verification
Reviewed-by: Herb Kuta <herb.kuta@lge.com>
Tested-by: Herb Kuta <herb.kuta@lge.com>
Reviewed-by: Gayathri Srinivasan <gayathri.srinivasan@lge.com>
Reviewed-by: Keith Derrick <keith.derrick@lge.com>