[PATCH] ARM: dts: imx7s: add spba-bus abstraction

[Shawn Guo]

On Tue, Feb 27, 2018 at 05:30:49PM +0100, Stefan Agner wrote:
> According to the i.MX 7Solo/Dual Application Processor Reference
> Manual the ECSPI1/2/3, UART1/2/3 and SAI1/2/3 peripherals are
> connected through the SPBA bus. Other similar SoCs such as i.MX 6UL
> add this bus abstraction. This adds the bus also to the i.MX 7
> device tree.
> 
> The i.MX SDMA driver uses this abstraction to configure watermark
> levels slightly differently, so this might change behavior slightly.
> There have no issues been observed before or after the patch.
> 
> Signed-off-by: Stefan Agner <stefan at agner.ch>

Applied, thanks.