DDR controller activation should not be in DDR chip
specific code, but in generic DDR controller part.
Change-Id: If1b178228352b48b0097d7b9b300005fb5bb4fb6
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/228
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>