[nrf fromlist] shields: nrf7002eb: Fix 54H app core boot

With recent SDSC bundles, 54H fails the app core boot in case of a
unsupported GPIO in the UICR.

As Wi-Fi SR co-existence on nRF54H20DK is not yet supported, remove this
GPIO for 54H. This will be fixed properly once co-existence is
revisited.

Upstream PR #: 83173

Signed-off-by: Chaitanya Tata <[email protected]>

Author: krish2718

boards/shields/nrf7002eb/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Only GPIOs 1..11 are supported for PORT1 in nRF54H20DK board, for now
+ * remove this as Wi-Fi SR co-existence is not yet supported on this board.
+ * The external SR RF switch may not even be present on this board.
+ */
+&nrf70 {
+	/delete-property/ srrf-switch-gpios;
+};