msm_cpu_freq_limit: initial coding for controlling MSM quadcore cpus

this module will allow proper max frequency control across all msm cores

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:
	arch/arm/mach-msm/Kconfig
	arch/arm/mach-msm/Makefile

Change-Id: Ib88c0f9ed9e83bab51f1d58959700e62e620e567