boards: shields: coverage_support: extend app flash and disable SSF

Add more FLASH for app (taken from rad).
Disable SDFW_SERVICES to save RAM.

Signed-off-by: Piotr Kosycarz <[email protected]>

Author: nordic-piks

boards/shields/coverage_support/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

@@ -7,18 +7,23 @@
 /* Delete current app definition to redefine belowe */
 /delete-node/ &cpuapp_slot0_partition;
 
-/* Extend by 128 KB, taken from rad */
+/* Extend by 160 KB, taken from rad */
 &cpuapp_rx_partitions {
 	cpuapp_slot0_partition: partition@74000 {
-		reg = <0x74000 DT_SIZE_K(448)>;
+		reg = <0x74000 DT_SIZE_K(480)>;
 	};
 };
 
-/* Shrink by 128 KB */
+/* Shrink by 160 KB */
 &cpurad_slot0_partition {
-	reg = <0x54000 DT_SIZE_K(128)>;
+	reg = <0x54000 DT_SIZE_K(96)>;
 };
 
 &uart136 {
 	hw-flow-control;
 };
+
+/* To disable SDFW_SERVICES to save RAM */
+&cpusec_cpuapp_ipc {
+	status = "disabled";
+};

boards/shields/coverage_support/boards/nrf54h20dk_nrf54h20_cpurad.overlay

@@ -4,7 +4,12 @@
  * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
  */
 
-/* Shrink by 128 KB */
+/* Shrink by 160 KB */
 &cpurad_slot0_partition {
-	reg = <0x54000 DT_SIZE_K(128)>;
+	reg = <0x54000 DT_SIZE_K(96)>;
+};
+
+/* To disable SDFW_SERVICES to save RAM */
+&cpusec_cpurad_ipc {
+	status = "disabled";
 };