arm: dts: am33xx: Remove redundant interrupt-parent property

Interrupt-parent property is defined in the root node as
"interrupt-parent = <&intc>". This interrupt-parent value becomes
the default for the system, so removed redundant "interrupt-parent"
property from mmc, mac, lcdc and tscadc nodes.
Signed-off-by: Suniel Mahesh <sunil.m@techveda.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am33xx.dtsi

@@ -431,7 +431,6 @@ mmc1: mmc@48060000 {
 				&edma_xbar 25 0 0>;
 			dma-names = "tx", "rx";
 			interrupts = <64>;
-			interrupt-parent = <&intc>;
 			reg = <0x48060000 0x1000>;
 			status = "disabled";
 		};
@@ -444,7 +443,6 @@ mmc2: mmc@481d8000 {
 				&edma 3 0>;
 			dma-names = "tx", "rx";
 			interrupts = <28>;
-			interrupt-parent = <&intc>;
 			reg = <0x481d8000 0x1000>;
 			status = "disabled";
 		};
@@ -454,7 +452,6 @@ mmc3: mmc@47810000 {
 			ti,hwmods = "mmc3";
 			ti,needs-special-reset;
 			interrupts = <29>;
-			interrupt-parent = <&intc>;
 			reg = <0x47810000 0x1000>;
 			status = "disabled";
 		};
@@ -853,7 +850,6 @@ mac: ethernet@4a100000 {
 			       0x4a101200 0x100>;
 			#address-cells = <1>;
 			#size-cells = <1>;
-			interrupt-parent = <&intc>;
 			/*
 			 * c0_rx_thresh_pend
 			 * c0_rx_pend
@@ -908,7 +904,6 @@ elm: elm@48080000 {
 		lcdc: lcdc@4830e000 {
 			compatible = "ti,am33xx-tilcdc";
 			reg = <0x4830e000 0x1000>;
-			interrupt-parent = <&intc>;
 			interrupts = <36>;
 			ti,hwmods = "lcdc";
 			status = "disabled";
@@ -917,7 +912,6 @@ lcdc: lcdc@4830e000 {
 		tscadc: tscadc@44e0d000 {
 			compatible = "ti,am3359-tscadc";
 			reg = <0x44e0d000 0x1000>;
-			interrupt-parent = <&intc>;
 			interrupts = <16>;
 			ti,hwmods = "adc_tsc";
 			status = "disabled";