ARM: mstar: Add smp ctrl registers to infinity2m dtsi

Add the smpctrl registers to the infinity2m dtsi so that the
second CPU can be enabled on chips in this family.

Signed-off-by: Daniel Palmer <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]'
Signed-off-by: Arnd Bergmann <[e-mail]>

arch/arm/boot/dts/mstar-infinity2m.dtsi

···
 		reg = <0x1>;
 	};
 };
+
+&riu {
+	smpctrl: smpctrl@204000 {
+		reg = <0x204000 0x200>;
+		status = "disabled";
+	};
+};