[nrf fromtree] drivers: wifi: Fix monitor mode handling

Monitor mode relies on core Wi-Fi management functions, so, the file
should be included for both system and system with raw modes.

Fix this by adding a hidden symbol.

Signed-off-by: Chaitanya Tata <[email protected]>
(cherry picked from commit 56055ac)

Author: krish2718

drivers/wifi/nrfwifi/CMakeLists.txt

@@ -76,7 +76,7 @@ zephyr_library_sources_ifdef(CONFIG_NET_L2_WIFI_MGMT
   src/wifi_mgmt_scan.c
 )
 
-zephyr_library_sources_ifdef(CONFIG_NRF70_SYSTEM_MODE
+zephyr_library_sources_ifdef(CONFIG_NRF70_SYSTEM_MODE_COMMON
   src/wifi_mgmt.c
 )
 

drivers/wifi/nrfwifi/Kconfig.nrfwifi

@@ -78,6 +78,10 @@ config NRF70_SYSTEM_WITH_RAW_MODES
 
 endchoice
 
+config NRF70_SYSTEM_MODE_COMMON
+	bool
+	default y if NRF70_SYSTEM_MODE || NRF70_SYSTEM_WITH_RAW_MODES
+
 config NET_L2_ETHERNET
 	default y if !NRF70_RADIO_TEST