ARM: dts: msm: Add SPS node for msmtriton

Add SPS module to device tree. SPS (Smart Peripheral System)
enables the support of all BAMs in the system which provide DMA
functionality to various peripherals.

Change-Id: I9fcf626fbbaaa4a15d88983de23910e02a9b57e8
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>