ARM: dts: gose: enable sound DMA support via BUSIF in device tree

Enable DMA transfer to/from SSIU in gose/r8a7791 device tree.

     DMA
[MEM] -> [SSIU] -> [SSI]

     DMA
[MEM] <- [SSIU] <- [SSI]

Based on similar work for the r8a7791/koelsch by Kuninori Morimoto.

Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7793-gose.dts

@@ -407,11 +407,6 @@ dai0 {
 	};
 };
 
-&ssi0 {
-	no-busif;
-};
-
 &ssi1 {
-	no-busif;
 	shared-pin;
 };