ARM: dts: msm: Override default ACC settings on MSM8994

On MSM8994, it is necessary to override the default ACC settings
each time Q6 is brought out of reset. Add a device tree property
to do the same.

CRs-Fixed: 694304
Change-Id: I180d70b37ccb5da337725dd023d8b1315b41bd33
Signed-off-by: Pushkar Joshi <pushkarj@codeaurora.org>