ARM: dts: msm: Add bus slave MSM_BUS_SLAVE_CLK_CTL for NPU on ATOLL

NPU needs to vote MSM_BUS_SLAVE_CLK_CTL bus slave to work properly.
When handling IPCC interrupts from apps, there may be a NOC timeout
error if apps enters into LPM without voting for minimum bw vote.
CNOC needs to be voted to make sure IPCC register write succeeds.

Change-Id: I64ba7cc86ebe16f1a5eb6aa13b0656fd81bf814b
Signed-off-by: Da Hoon Pyun <dpyun@codeaurora.org>