ARM: dts: msm: add NULL packet insertion entry on SDM845, SDM670

Add the DT property to enable the NULL packet insertion feature
for SDM845 and SDM670 targets. This is required to avoid LP-HS-LP
transitions during pixel data or DMA packet transfer.

Change-Id: Ic593b7ac43850b63a72926a0f1f412dc47980363
Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
2 files changed