Add LCD definitions and also a proposed binding for LCD displays.
The PWM is as per what will likely be committed to linux-next soon.
The displaymode binding comes from a proposal here:
The panel binding is new, and fills a need to specify the panel
timings and other tegra-specific information. Should a binding appear
that allows the pwm to handle this automatically, we can revisit
Signed-off-by: Simon Glass <firstname.lastname@example.org>
Signed-off-by: Tom Warren <email@example.com>