Some of architectures (e.g. tilegx), several syscall macros are not
supported, so switch them.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Message-Id: <BLU436-SMTP457D6FC9B2B9BA87AEB22CB9660@phx.gbl>
Signed-off-by: NRichard Henderson <rth@twiddle.net>