MSM LIMIT FREQ: Add suspend max freq sysfs + suspend/resume code.

*This now allow to limit max freq on screen OFF to save power.
when using wakelock app as music player.
*When screen will be ON, max allowed freq will be restored!

Code was been adapted from Hotplugs drivers!

Big thanks to @Alucard24 and @Neobuddy89 for suspend/resume code.

cortex can relax now :)
HOTPLUGS: Clean suspend max freq from HotPlugs! no longer needed!

this code move to cpufreq_limit.c and working good now.

see d161bb1