linux-user: fix O_TMPFILE handling

Since O_TMPFILE might differ between guest and host,
add it to the bitmask_transtbl. While at it, fix the definitions
of O_DIRECTORY etc which should arm32 according to kernel sources.

This fixes open14 and openat03 ltp testcases. Fixes:

https://bugs.launchpad.net/qemu/+bug/1709170
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9b6364a..08fbc4d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -342,6 +342,9 @@
 #if defined(O_PATH)
   { TARGET_O_PATH,      TARGET_O_PATH,      O_PATH,      O_PATH       },
 #endif
+#if defined(O_TMPFILE)
+  { TARGET_O_TMPFILE,   TARGET_O_TMPFILE,   O_TMPFILE,   O_TMPFILE    },
+#endif
   /* Don't terminate the list prematurely on 64-bit host+guest.  */
 #if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
   { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },