linux-user: Provide MADV_* definitions

Provide MADV_* definitions using target_mman.h header, similar to what
kernel does. Most architectures use the same values, with the exception
of alpha and hppa.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220906000839.1672934-2-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/s390x/target_mman.h b/linux-user/s390x/target_mman.h
new file mode 100644
index 0000000..e7ba607
--- /dev/null
+++ b/linux-user/s390x/target_mman.h
@@ -0,0 +1 @@
+#include "../generic/target_mman.h"