resin-os.inc: Don't install /etc/hostname from base-files
resin-os.inc: Don't install /etc/hostname from base-files

We generate the hostname at boot time so no need to deploy it in the build.

Signed-off-by: Andrei Gherzan <8dc7c09356db0b1762fb140617d7375c0a5a4131@resin.io>

resin-os/meta-resin,resin-os/meta-resin,resin-os/meta-resin,resin-os/meta-resin