Implement detection of volumes with vulnerable XTS master key.

If vulnerability detected, a warning message is displayed during mount or backup/restore header, and changing the password is disallowed since it will not change the master key.

src/Common/Tcdefs.h

@@ -494,7 +494,9 @@ enum
 	ERR_NONSYS_INPLACE_ENC_INCOMPLETE		= 32,
 	ERR_USER_ABORT							= 33,
 	ERR_RAND_INIT_FAILED					= 34,
-	ERR_CAPI_INIT_FAILED					= 35
+	ERR_CAPI_INIT_FAILED					= 35,
+	ERR_XTS_MASTERKEY_VULNERABLE			= 36,
+	ERR_SYSENC_XTS_MASTERKEY_VULNERABLE			= 37
 };
 
 #endif 	// #ifndef TCDEFS_H