ARM: dts: msm: Add support for CPU clocks for msmfalcon

OSM cpu clock node is required by cpufreq client to be able to scale cpu
frequency. Add tables of various speed bins supported and keep the status
of the clock node disabled for now.

Change-Id: I0aca021e51ef9ae59dedce855430a63937eb98c6
Signed-off-by: Taniya Das <tdas@codeaurora.org>