[nrf fromlist] tests: bluetooth: tester: make hci_ipc confs generic for multi-core

nrf5340_hci_ipc.conf and nrf5340_hci_ipc_cpunet.conf were board specific
rename them for generic multi-core board support

Upstream PR #: 81755

Signed-off-by: Aytürk Düzen <[email protected]>

Author: AyturkDuzen

tests/bluetooth/tester/nrf5340_hci_ipc.conf renamed to tests/bluetooth/tester/hci_ipc.conf

@@ -30,7 +30,7 @@ if(SB_CONFIG_NET_CORE_IMAGE_HCI_IPC)
 	endif()
 
 	set(${NET_APP}_EXTRA_CONF_FILE
-	 ${APP_DIR}/nrf5340_hci_ipc_cpunet.conf
+	 ${APP_DIR}/hci_ipc_cpunet.conf
 	 CACHE INTERNAL ""
 	)