Add LCD driver for Ilitek ILI9221/ILI9222 controller.  The driver uses
SPI interface for controller access and configuration and RGB interface
for graphics data transfer.
Signed-off-by: NStefano Babic <sbabic@denx.de>
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>