init: init_script_domain() allow system_r role the init script domain type

Manually apply patch from Dominick Grift.

policy/modules/system/init.if

@@ -76,6 +76,8 @@ interface(`init_script_domain',`
 	domain_type($1)
 	domain_entry_file($1, $2)
 
+	role system_r types $1;
+
 	domtrans_pattern(init_run_all_scripts_domain, $2, $1)
 ')