[nrf fromlist] Revert "boards: nordic: Fix cpuapp_ram0x_region reg value."

This reverts commit 1e69738.

Upstream PR #: 88121

Ref: NCSDK-32650

Signed-off-by: Tomasz Chyrowicz <[email protected]>

This reverts commit 1e69738

Author: tomchy

boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20-memory_map.dtsi

@@ -27,7 +27,7 @@
 
 		cpuapp_ram0x_region: memory@2f011000 {
 			compatible = "nordic,owned-memory";
-			reg = <0x2f011000 DT_SIZE_K(260)>;
+			reg = <0x2f010000 DT_SIZE_K(260)>;
 			status = "disabled";
 			nordic,access = <NRF_OWNER_ID_APPLICATION NRF_PERM_RWS>;
 			#address-cells = <1>;