ARM: dts: OMAP: Move interrupt-parent to the root node to avoid duplication

The interrupt-parent attribute does not have to be added in each
node since the fmwk will check for the parent as well to get it.

Create an interrupt-parent for OMAP2, OMAP3, AM33xx and remove the
attributes from every nodes that were using it.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Sebastien Guiriec <s-guiriec@ti.com>
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 696e929..fa15541 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -12,6 +12,7 @@
 
 / {
 	compatible = "ti,omap3430", "ti,omap3";
+	interrupt-parent = <&intc>;
 
 	aliases {
 		serial0 = &uart1;
@@ -240,7 +241,6 @@
 				     <59>, /* TX interrupt */
 				     <60>; /* RX interrupt */
 			interrupt-names = "common", "tx", "rx";
-			interrupt-parent = <&intc>;
 			ti,buffer-size = <128>;
 			ti,hwmods = "mcbsp1";
 		};
@@ -255,7 +255,6 @@
 				     <63>, /* RX interrupt */
 				     <4>;  /* Sidetone */
 			interrupt-names = "common", "tx", "rx", "sidetone";
-			interrupt-parent = <&intc>;
 			ti,buffer-size = <1280>;
 			ti,hwmods = "mcbsp2", "mcbsp2_sidetone";
 		};
@@ -270,7 +269,6 @@
 				     <90>, /* RX interrupt */
 				     <5>;  /* Sidetone */
 			interrupt-names = "common", "tx", "rx", "sidetone";
-			interrupt-parent = <&intc>;
 			ti,buffer-size = <128>;
 			ti,hwmods = "mcbsp3", "mcbsp3_sidetone";
 		};
@@ -283,7 +281,6 @@
 				     <54>, /* TX interrupt */
 				     <55>; /* RX interrupt */
 			interrupt-names = "common", "tx", "rx";
-			interrupt-parent = <&intc>;
 			ti,buffer-size = <128>;
 			ti,hwmods = "mcbsp4";
 		};
@@ -296,7 +293,6 @@
 				     <81>, /* TX interrupt */
 				     <82>; /* RX interrupt */
 			interrupt-names = "common", "tx", "rx";
-			interrupt-parent = <&intc>;
 			ti,buffer-size = <128>;
 			ti,hwmods = "mcbsp5";
 		};