builder: introduce package-group networking
builder: introduce package-group networking

'host' is missing on the builder images, and impact usability when
testing network conectivity.

To add it by default, we create a networking packagegroup, and add that
to the default images .. since 'host' won't be the last missing utility
located.

Signed-off-by: Bruce Ashfield <284cc737d174a260eec2a2a6324a304f84b1ae0f@windriver.com>

WindRiver-OpenSourceLabs/meta-overc,OverC/meta-overc,OverC/meta-overc,OverC/meta-overc,jwessel/meta-overc,OverC/meta-overc,mufeng/meta-overc,WindRiver-OpenSourceLabs/meta-overc,mufeng/meta-overc,OverC/meta-overc,paw3142/meta-overc-1,paw3142/meta-overc-1,masselstine/meta-overc,masselstine/meta-overc,mufeng/meta-overc,masselstine/meta-overc,jwessel/meta-overc,masselstine/meta-overc,WindRiver-OpenSourceLabs/meta-overc,jwessel/meta-overc,OverC/meta-overc