ARM: dts: imx5: remove fsl,ssi-dma-events

All imx5*.dtsi files define the generic dma bindings. Drop the old
non-generic fsl,ssi-dma-events.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/imx51.dtsi

@@ -218,7 +218,6 @@ ssi2: ssi@70014000 {
 					       <&sdma 25 1 0>;
 					dma-names = "rx", "tx";
 					fsl,fifo-depth = <15>;
-					fsl,ssi-dma-events = <25 24 23 22>; /* TX0 RX0 TX1 RX1 */
 					status = "disabled";
 				};
 
@@ -508,7 +507,6 @@ ssi1: ssi@83fcc000 {
 				       <&sdma 29 0 0>;
 				dma-names = "rx", "tx";
 				fsl,fifo-depth = <15>;
-				fsl,ssi-dma-events = <29 28 27 26>; /* TX0 RX0 TX1 RX1 */
 				status = "disabled";
 			};
 
@@ -564,7 +562,6 @@ ssi3: ssi@83fe8000 {
 				       <&sdma 47 0 0>;
 				dma-names = "rx", "tx";
 				fsl,fifo-depth = <15>;
-				fsl,ssi-dma-events = <47 46 37 35>; /* TX0 RX0 TX1 RX1 */
 				status = "disabled";
 			};
 

arch/arm/boot/dts/imx53.dtsi

@@ -231,7 +231,6 @@ ssi2: ssi@50014000 {
 					       <&sdma 25 1 0>;
 					dma-names = "rx", "tx";
 					fsl,fifo-depth = <15>;
-					fsl,ssi-dma-events = <25 24 23 22>; /* TX0 RX0 TX1 RX1 */
 					status = "disabled";
 				};
 
@@ -661,7 +660,6 @@ ssi1: ssi@63fcc000 {
 				       <&sdma 29 0 0>;
 				dma-names = "rx", "tx";
 				fsl,fifo-depth = <15>;
-				fsl,ssi-dma-events = <29 28 27 26>; /* TX0 RX0 TX1 RX1 */
 				status = "disabled";
 			};
 
@@ -689,7 +687,6 @@ ssi3: ssi@63fe8000 {
 				       <&sdma 47 0 0>;
 				dma-names = "rx", "tx";
 				fsl,fifo-depth = <15>;
-				fsl,ssi-dma-events = <47 46 45 44>; /* TX0 RX0 TX1 RX1 */
 				status = "disabled";
 			};