Change num_chipselect for lubbock ssp master to reflect requirement
of spi subsystem that all buses have at least 1 chip select.
Signed-off-by: NJonathan Cameron <jic23@cam.ac.uk>
Acked-by: NEric Miao <eric.miao@marvell.com>
Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>