files: define O_TMPFILE

These fixes compilation on VZ7:
https://ci.openvz.org/job/CRIU/job/CRIU-virtuozzo/job/criu-dev/3605/console

https://jira.sw.ru/browse/PSBM-83713Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

criu/include/fcntl.h

@@ -38,4 +38,12 @@ struct f_owner_ex {
 # define O_PATH		010000000
 #endif
 
+#ifndef __O_TMPFILE
+#define __O_TMPFILE     020000000
+#endif
+
+#ifndef O_TMPFILE
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
+#endif
+
 #endif /* __CR_ASM_GENERIC_FCNTL_H__ */