ARM: dts: msm: Update and enable the clock_cpucc node on SDM855

Update the device tree node for clock_cpucc to move from using
dummy clocks to programming and reading actual OSM base registers.

Change-Id: I9f68536c72fe9e5142d8dfd2e069267d759acd11
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>