ARM: dts: msm: Enable the OSM clock controller for sm6150

Update the cpucc clock node to use the real OSM clock
controller for sm6150. Also add the measurement support
for CPU clocks.

Change-Id: I6c4ed45418f07f24fc53215a1994e826381717ad
Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>