ARM: dts: msm: update frequency to ACC level mappings for msmcobalt

Since LowSVS and SVS frequencies share the same ACC settings,
map any frequency in the LowSVS to SVS range to the same ACC
level. By doing so, the OSM device need only support 3 levels
instead of 4 thus saving sequencer instruction space. Also,
update the ACC setting to ensure bit 31 of the last ACC register
in each cluster is set when running at LowSVS/SVS frequencies.

CRs-Fixed: 1021659
Change-Id: I322b9b57ec89f5cdc75336d83010ff89a6bb5726
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>