The AST2500 SoC has two. Let's prepare ground for the next changes
which will add the required definitions for the second host SPI
controller.
Signed-off-by: NCédric Le Goater <clg@kaod.org>
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Message-id: 1474977462-28032-4-git-send-email-clg@kaod.org
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>