or1k: add dummy sys/user.h for strace

libc/sysdeps/linux/or1k/sys/user.h

@@ -0,0 +1,21 @@
+/*
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H	1
+
+/* The whole purpose of this file is for GDB and GDB only.  Don't read
+   too much into it.  Don't use it for anything other than GDB unless
+   you know what you are doing.  */
+
+
+/* Actually apps like strace also expect a struct user, so it's better to
+ * have a dummy implementation
+ */
+
+struct user {
+	int dummy;
+};
+
+#endif  /* _SYS_USER_H */