linux-yocto/4.1: pstate backports
Backporting the following pstate changes:
fb0153332a1f intel_pstate: Add SKY-S support
7eb5c7e382a8 intel_pstate: enable HWP per CPU
d73ee41f9786 x86/mm: Decouple <linux/vmalloc.h> from <asm/io.h>
f447e3d661f7 intel_pstate: Force setting target pstate when required
7db69b864737 intel_pstate: change some inconsistent debug information
367ff9c73d83 intel_pstate: Add tsc collection and keep previous target pstate
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
