arm: msm: add CPU Overclock steps up to 1728MHz. The

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>

Conflicts:
	arch/arm/mach-msm/acpuclock-8064.c
Merge branch 'jb4.2' of github.com:CodeTh3ory/kernel_lge_mako into jb4.2