Add missing gen_require for init_t in init_script_domain

Signed-off-by: Dave Sugar <dsugar@tresys.com>

policy/modules/system/init.if

@@ -101,6 +101,9 @@ interface(`init_script_domain',`
 	domtrans_pattern(init_run_all_scripts_domain, $2, $1)
 
 	ifdef(`init_systemd',`
+		gen_require(`
+			type init_t;
+		')
 		allow $1 init_t:unix_stream_socket { getattr read write ioctl };
 
 		allow init_t $1:process2 { nnp_transition nosuid_transition };