ARM: dts: vf610: lpuart: Add eDMA support

Add lpuart dts node properties for eDMA support, them depend on the eDMA driver.
Signed-off-by: Yuan Yao <yao.yuan@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/vf610.dtsi

@@ -109,6 +109,9 @@ uart0: serial@40027000 {
 				interrupts = <0 61 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks VF610_CLK_UART0>;
 				clock-names = "ipg";
+				dmas = <&edma0 0 2>,
+					<&edma0 0 3>;
+				dma-names = "rx","tx";
 				status = "disabled";
 			};
 
@@ -118,6 +121,9 @@ uart1: serial@40028000 {
 				interrupts = <0 62 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks VF610_CLK_UART1>;
 				clock-names = "ipg";
+				dmas = <&edma0 0 4>,
+					<&edma0 0 5>;
+				dma-names = "rx","tx";
 				status = "disabled";
 			};
 
@@ -127,6 +133,9 @@ uart2: serial@40029000 {
 				interrupts = <0 63 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks VF610_CLK_UART2>;
 				clock-names = "ipg";
+				dmas = <&edma0 0 6>,
+					<&edma0 0 7>;
+				dma-names = "rx","tx";
 				status = "disabled";
 			};
 
@@ -136,6 +145,9 @@ uart3: serial@4002a000 {
 				interrupts = <0 64 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks VF610_CLK_UART3>;
 				clock-names = "ipg";
+				dmas = <&edma0 0 8>,
+					<&edma0 0 9>;
+				dma-names = "rx","tx";
 				status = "disabled";
 			};