samples: cellular: lte_ble_gateway: Update to use new HCI driver

Updates required by changes in zephyr upstream. Fixes an issue where
the nRF52840 did not reset on init.

Signed-off-by: Eivind Jølsgard <eivind.jolsgard@nordicsemi.no>

Author: eivindj-nordic

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -298,6 +298,10 @@ Cellular samples
 
   * Fixed an issue with an uninitialized variable in the :c:func:`handle_at_cmd_requests` function.
 
+* :ref:`lte_sensor_gateway` sample:
+
+   * Fixed an issue with devicetree configuration after HCI updates in `sdk-zephyr`_.
+
 Cryptography samples
 --------------------
 

samples/cellular/lte_ble_gateway/boards/nrf9160dk_nrf9160_ns.overlay

@@ -3,6 +3,7 @@
 / {
 	chosen {
 		zephyr,bt-uart=&lpuart;
+		zephyr,bt-hci = &bt_hci_uart;
 	};
 };
 
@@ -23,6 +24,11 @@
 		status = "okay";
 		req-pin = <21>; /* <&interface_to_nrf52840 3 0>; */
 		rdy-pin = <19>; /* <&interface_to_nrf52840 2 0>; */
+
+		bt_hci_uart: bt_hci_uart {
+			compatible = "zephyr,bt-hci-uart";
+			status = "okay";
+		};
 	};
 };
 

samples/cellular/lte_ble_gateway/prj.conf

@@ -53,6 +53,8 @@ CONFIG_CONSOLE_GETCHAR=y
 # Enable Bluetooth stack and libraries
 CONFIG_BT=y
 CONFIG_BT_H4=y
+CONFIG_BT_HCI=y
+CONFIG_BT_CTLR=n
 CONFIG_BT_WAIT_NOP=y
 CONFIG_BT_CENTRAL=y
 CONFIG_BT_GATT_CLIENT=y