kernel/devices.if: Add dev_rw_loop_control interface

policy/modules/kernel/devices.if

@@ -2376,6 +2376,24 @@ interface(`dev_rw_lirc',`
 	rw_chr_files_pattern($1, device_t, lirc_device_t)
 ')
 
+######################################
+## <summary>
+##	Read and write the loop-control device.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`dev_rw_loop_control',`
+	gen_require(`
+		type device_t, loop_control_device_t;
+	')
+
+	rw_chr_files_pattern($1, device_t, loop_control_device_t)
+')
+
 ######################################
 ## <summary>
 ##	Automatic type transition to the type