POWERSUSPEND: export suspend_mode to MDSS and dont call hooks for nothing.

*Bump ver to 1.6
*In my kernel i dont use LCD hooks to trigger powersuspend on/off
I use the kernel/power/*.c code hooks.
*When not using MDSS hook, screen turn ON faster!
as code dont wait for powersuspend.
it's small delay, but i dont want it :)