ARM: dts: msm: Add CDSP L3 node and Cx ipeak mitigation for ATOLL

CDSP L3 devfreq node is needed for CDSP L3 governor to request
for L3 clock frequency based on application need on CDSP.
Cx ipeak mitigation framework enables communication between NPU and
CDSP drivers for Cx ipeak mitigation.

Change-Id: Ieb24fb0c0d8a0ab45651140fb1f5ec5d12cd84cc
Acked-by: Sreekanth Gande <sgande@qti.qualcomm.com>
Signed-off-by: Tharun Kumar Merugu <mtharu@codeaurora.org>