dra7: dtsi: mark ocp2scp bus compatible with "simple-bus"

This is needed to probe devices under that bus such as the SATA PHY.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/omap5-u-boot.dtsi b/arch/arm/dts/omap5-u-boot.dtsi
index 6305f57..9247314 100644
--- a/arch/arm/dts/omap5-u-boot.dtsi
+++ b/arch/arm/dts/omap5-u-boot.dtsi
@@ -10,6 +10,10 @@
 /{
 	ocp {
 		u-boot,dm-pre-reloc;
+
+		ocp2scp@4a090000 {
+			compatible = "ti,omap-ocp2scp", "simple-bus";
+		};
 	};
 };