packaging: Enable features according to distribution

This change introduces two new "install_systemd" and "install_systemv"
macros that control if the service should be controlled by systemd or by
System V init scripts. These macros are enabled or disabled according to
the type of distribution.

Change-Id: I7b0318a6ddd4067751c796e4ab0fa150b6091204
Signed-off-by: Juan Hernandez <juan.hernandez@redhat.com>
(cherry picked from commit 4fcb3bd6f2b4720a7e497b73f0506595a24558a0)