Make system-server start and run on tizen-common

Make system-server start and run on tizen-common

* packaging: fix regpmon and set_pmon installation

These binaries were provided by system-server and sysman sub-package.
It conducts to an rpm conflict at installation time.

This fix generates correct binaries and only provide them in system-server
package.

* packaging: massive clean up

- remove useless system-server sub-package
- remove useless Apache-2.0 license sub-package
- remove useless systemd require(post/postun/preun) dependencies
- remove useless buildroot deletion in %install section
- gather all of the %post/%postun scriptlets above %files sections
- fix sysman sub-package dependencies

* Removed references to (useless) missing file.

* deviced.conf supersedes system-server.conf

* Removed useless and confusing files from utils/ (bash scripts and one
ARM binary(!))

* system-server.socket goes to sockets.target.wants, system-server.service
goes to multi-user.target.wants

* added missing condition to not include X11 specific code non-X targets

Bug-tizen: TC-16
Change-Id: I37fef948dd64b985a7a983e6e72083eec1e61c70
Signed-off-by: Corentin Lecouvey <corentin.lecouvey@open.eurogiciel.org>
Signed-off-by: Romuald Texier-Marcadé <romuald.texier-marcade@open.eurogiciel.org>