ARM: clps711x: Moving power management of framebuffer driver to the board

This patch moves the power management for clps711x-framebuffer driver
to the board code. To control we use "platform-lcd" driver.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>