powerpc/powernv: Enable fetching of platform sensor data

This patch enables fetching of various platform sensor data through
OPAL and expects a sensor handle from the driver to pass to OPAL.

Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --cc arch/powerpc/include/asm/opal.h
Simple merge

diff --cc arch/powerpc/platforms/powernv/Makefile
Simple merge

diff --cc arch/powerpc/platforms/powernv/opal-sensor.c
Simple merge

diff --cc arch/powerpc/platforms/powernv/opal-wrappers.S
Simple merge