arm/dts: omap4: Add entry for OMAP McPDM IP

McPDM is used on OMAP4 based boards to communicate with an external audio
codec (twl6040).
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap4.dtsi

@@ -277,5 +277,14 @@
 			compatible = "ti,omap4-wdt", "ti,omap3-wdt";
 			ti,hwmods = "wd_timer2";
 		};
+
+		mcpdm: mcpdm@40132000 {
+			compatible = "ti,omap4-mcpdm";
+			reg = <0x40132000 0x7f>, /* MPU private access */
+			      <0x49032000 0x7f>; /* L3 Interconnect */
+			interrupts = <0 112 0x4>;
+			interrupt-parent = <&gic>;
+			ti,hwmods = "mcpdm";
+		};
 	};
 };