If the RAM size is invalid, the memory controller will use a default
value.
Signed-off-by: NCédric Le Goater <clg@kaod.org>
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-15-git-send-email-clg@kaod.org
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>