ARM: dts: msm: Fix the clock failures with icp driver on sdm845v1

cpas_ahb_clk is a branch clock for slow_ahb_clk_src. Turning
off the source clock first result in clock scale errors during
the camera close. Hence reverse the order and also fix
the clock rates for icp node.

Change-Id: I0a100681b4d5419f7aa49c02c86a1482526a5fa6
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>