ARM: dts: msm: Fix l3-cpu* devices' frequency maps for SDM845

Since l3 voter clocks get their frequency table from OPP, the
frequency values are in Hz. But l3-cpu* devices still have l3
frequencies listed in kHz which causes their votes to be low.
Change the l3 frequencies votes of the l3-cpu* devices to be in
Hz to follow the same convention as OPP, so that they can vote
correctly.

Change-Id: I3287afd22aa03be559697dacdc66bd72bc63a577
Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>