Add HostTime.py in Makefile

Change-Id: Ia4a3acc382969f619ac94fc36a0f84d5ba2fcd8e
Signed-off-by: Meghal Gosalia <meghal@yahoo-inc.com>
Reviewed-on: http://gerrit.ovirt.org/31110
Reviewed-by: Adam Litke <alitke@redhat.com>
Tested-by: Meghal .B. Gosalia <meghalgosalia@gmail.com>