clk: msm: osm: refactor logic to handle multiple boost frequencies

The OSM LUT may have duplicate frequencies between one
and four core count compatible frequencies. If the selected
frequency exists for both single and quad core, select the quad
core frequency by default. Also, expose only 4-core frequencies
and the absolute maximum frequency to clock consumers.

CRs-Fixed: 1086294
Change-Id: I2424bfdfd381241d307862113451082a9727a903
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>