Modify atmel LCD driver: atmel_lcdfb for at91sam9g10.  This add a clock
management equivalent to at91sam9261.
Signed-off-by: NHong Xu <hong.xu@atmel.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NAndrew Victor <linux@maxim.org.za>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>