ARM: STi: DT: STiH418: Add cpu-release-addr dt property.

To enable SMP when booting via u-boot we need to specify the
newly implemented cpu-release-addr DT property for cores 2 & 3.
Cores 0 & 1 are inherited from stih407-family.dtsi.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>

arch/arm/boot/dts/stih418.dtsi

@@ -17,11 +17,15 @@ cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <2>;
+			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
+			cpu-release-addr = <0x94100A4>;
 		};
 		cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <3>;
+			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
+			cpu-release-addr = <0x94100A4>;
 		};
 	};