clk: qcom: clk-cpu-osm: Allow listing similar frequencies in LUT

There is a possibility for two frequency entries to be listed in
the LUT table that have the same L_VAL. Treat this as a valid
case in both the cpufreq and OSM clock lookup logic.

Change-Id: Ic0001affebe9d2814e6a77aac3780c69db825684
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>