arm: dts: omap3: sync DTS with Linux 4.14-rc1

This re-syncs omap3 DTS file with current file from
Linux v4.14-rc1 to ensure a consistent configuration. Upstream
Linux removed the redundant Interrupt-parent property from usbhsohci,
usbhsehci, ssi_port1 and ssi_port2 sub nodes.

Signed-off-by: Karthik Tummala <karthik@techveda.org>

arch/arm/dts/omap3.dtsi

@@ -716,14 +716,12 @@
 			usbhsohci: ohci@48064400 {
 				compatible = "ti,ohci-omap3";
 				reg = <0x48064400 0x400>;
-				interrupt-parent = <&intc>;
 				interrupts = <76>;
 			};
 
 			usbhsehci: ehci@48064800 {
 				compatible = "ti,ehci-omap";
 				reg = <0x48064800 0x400>;
-				interrupt-parent = <&intc>;
 				interrupts = <77>;
 			};
 		};
@@ -834,7 +832,6 @@
 				reg-names = "tx",
 					    "rx";
 
-				interrupt-parent = <&intc>;
 				interrupts = <67>,
 					     <68>;
 			};
@@ -847,7 +844,6 @@
 				reg-names = "tx",
 					    "rx";
 
-				interrupt-parent = <&intc>;
 				interrupts = <69>,
 					     <70>;
 			};