dts: atmel: saml21: Exclude DMA node

The DMA is already defined on the base header. This exclude the
duplicated node.

Signed-off-by: Gerson Fernando Budke <[email protected]>
(cherry picked from commit 2e7599e)

Author: nandojve

dts/arm/atmel/saml21.dtsi

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2021 Argentum Systems Ltd.
+ * Copyright (c) 2024 Gerson Fernando Budke <[email protected]>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -23,15 +24,6 @@
 			num-bidir-endpoints = <8>;
 		};
 
-		dmac: dmac@44000400 {
-			compatible = "atmel,sam0-dmac";
-			reg = <0x44000400 0x50>;
-			interrupts = <5 0>;
-			status = "disabled";
-
-			#dma-cells = <2>;
-		};
-
 		tcc0: tcc@42001400 {
 			compatible = "atmel,sam0-tcc";
 			reg = <0x42001400 0x80>;