ARM: dts: Configure omap5 rng to probe with ti-sysc

This is similar to dra7 and omap4 with different clock naming
and module address.

Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap5-l4.dtsi

@@ -1769,12 +1769,26 @@ timer11: timer@0 {
 			};
 		};
 
-		target-module@90000 {			/* 0x48090000, ap 55 1a.0 */
-			compatible = "ti,sysc";
-			status = "disabled";
+		rng_target: target-module@90000 {	/* 0x48090000, ap 55 1a.0 */
+			compatible = "ti,sysc-omap2", "ti,sysc";
+			reg = <0x91fe0 0x4>,
+			      <0x91fe4 0x4>;
+			reg-names = "rev", "sysc";
+			ti,sysc-mask = <(SYSC_OMAP2_AUTOIDLE)>;
+			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>;
+			/* Domains (P, C): l4per_pwrdm, l4sec_clkdm */
+			clocks = <&l4sec_clkctrl OMAP5_RNG_CLKCTRL 0>;
+			clock-names = "fck";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0x0 0x90000 0x2000>;
+
+			rng: rng@0 {
+				compatible = "ti,omap4-rng";
+				reg = <0x0 0x2000>;
+				interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+			};
 		};
 
 		target-module@98000 {			/* 0x48098000, ap 47 08.0 */