SPMD: Specify conduit to be used in SPCI DT for SPCI Driver

This patch modifies the SPCI node in the example DT source file to
indicate that the SPCI driver should use SMCs as its conduit.

Change-Id: Ie3342bc6b72f5a76eeb10b4a73c3bfa49778d5a4
diff --git a/fdts/fvp-base-gicv3-psci-1t-optee-spci.dts b/fdts/fvp-base-gicv3-psci-1t-optee-spci.dts
index b920b47..792e3c4 100644
--- a/fdts/fvp-base-gicv3-psci-1t-optee-spci.dts
+++ b/fdts/fvp-base-gicv3-psci-1t-optee-spci.dts
@@ -49,6 +49,7 @@
 	};
 
 	spci {
-	     compatible = "arm,spci-alpha2";
+		compatible = "arm,spci";
+		conduit = "smc";
 	};
 };
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