arm64: dts: imx8mp-tqma8mpql-mba8mpxl: Remove unused ocram node

This node is unused and origins from downstream kernel where it is
used for the DSP.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts

@@ -222,11 +222,6 @@ reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
-		ocram: ocram@900000 {
-			no-map;
-			reg = <0 0x900000 0 0x70000>;
-		};
-
 		/* global autoconfigured region for contiguous allocations */
 		linux,cma {
 			compatible = "shared-dma-pool";