Add the CPU and LLC BWMONs (skip the NPU ones for now) on sm8250.

LPDDR4X levels are skipped, as LPDDR5 seems more popular with SM8250 and
voting for inexistent levels doesn't uptick the bus frequency, which
results in no increased bandwidth, which results in bwmon deciding we
shouldn't go higher.. you see the point!
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230711-topic-sm638250_bwmon-v1-3-bd4bb96b0673@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>