Create policy.json file in Ocata for non-admin user

Non-admin user is not allowed to view host_status flag.
To get the host status, policy.json file needs to be
created as it is not available in Ocata by default.
This is created for local and fuel installer types
in this commit.

JIRA: DOCTOR-110

Change-Id: Ie626217a515f821c47b1cb6ed0e3d504d8e01b3a
Signed-off-by: Umar Farooq <umar.farooq@neclab.eu>