Add Doxygen markup for Camellia enctype constants

An RFC number has been assigned for the Camellia draft.  Add Doxygen
markup to the enctype and cksumtype constants pointing to the
informational RFC.

src/include/krb5/krb5.hin

@@ -440,8 +440,8 @@ typedef struct _krb5_crypto_iov {
 #define ENCTYPE_AES256_CTS_HMAC_SHA1_96 0x0012 /**< RFC 3962 */
 #define ENCTYPE_ARCFOUR_HMAC            0x0017
 #define ENCTYPE_ARCFOUR_HMAC_EXP        0x0018
-#define ENCTYPE_CAMELLIA128_CTS_CMAC    0x0019
-#define ENCTYPE_CAMELLIA256_CTS_CMAC    0x001a
+#define ENCTYPE_CAMELLIA128_CTS_CMAC    0x0019 /**< RFC 6803 */
+#define ENCTYPE_CAMELLIA256_CTS_CMAC    0x001a /**< RFC 6803 */
 #define ENCTYPE_UNKNOWN                 0x01ff
 
 #define CKSUMTYPE_CRC32         0x0001
@@ -458,8 +458,8 @@ typedef struct _krb5_crypto_iov {
                                                 ENCTYPE_AES128_CTS_HMAC_SHA1_96 */
 #define CKSUMTYPE_HMAC_SHA1_96_AES256 0x0010 /**< RFC 3962. Used with
                                                 ENCTYPE_AES256_CTS_HMAC_SHA1_96 */
-#define CKSUMTYPE_CMAC_CAMELLIA128 0x0011
-#define CKSUMTYPE_CMAC_CAMELLIA256 0x0012
+#define CKSUMTYPE_CMAC_CAMELLIA128 0x0011 /**< RFC 6803 */
+#define CKSUMTYPE_CMAC_CAMELLIA256 0x0012 /**< RFC 6803 */
 #define CKSUMTYPE_MD5_HMAC_ARCFOUR -137 /*Microsoft netlogon cksumtype*/
 #define CKSUMTYPE_HMAC_MD5_ARCFOUR -138 /*Microsoft md5 hmac cksumtype*/