Use standard unsigned integer types

src/libcharon/encoding/payloads/unknown_payload.c

@@ -39,7 +39,7 @@ struct private_unknown_payload_t {
 	/**
 	 * Next payload type.
 	 */
-	u_int8_t next_payload;
+	uint8_t next_payload;
 
 	/**
 	 * Critical flag.
@@ -54,7 +54,7 @@ struct private_unknown_payload_t {
 	/**
 	 * Length of this payload.
 	 */
-	u_int16_t payload_length;
+	uint16_t payload_length;
 
 	/**
 	 * The contained data.