wifi: shell: Support WPA auto personal security mode

Applications need to run a scan to identify the security
mode before attempting the connection which adds to the time
taken for connection to be established.
To avoid the initial scan, support auto security mode which will
enable STA to choose between WPA, WPA2 and WPA3, based on the
network configuration.

Signed-off-by: Ravi Dondaputi <ravi.dondaputi@nordicsemi.no>

include/zephyr/net/wifi.h

@@ -49,6 +49,8 @@ enum wifi_security_type {
 	WIFI_SECURITY_TYPE_WEP,
 	/** WPA-PSK security. */
 	WIFI_SECURITY_TYPE_WPA_PSK,
+	/** WPA/WPA2/WPA3 PSK security. */
+	WIFI_SECURITY_TYPE_WPA_AUTO_PERSONAL,
 
 	__WIFI_SECURITY_TYPE_AFTER_LAST,
 	WIFI_SECURITY_TYPE_MAX = __WIFI_SECURITY_TYPE_AFTER_LAST - 1,

subsys/net/l2/wifi/wifi_mgmt.c

@@ -275,7 +275,8 @@ static int wifi_connect(uint32_t mgmt_request, struct net_if *iface,
 	    (params->ssid_length == 0U) ||
 	    ((params->security == WIFI_SECURITY_TYPE_PSK ||
 		  params->security == WIFI_SECURITY_TYPE_WPA_PSK ||
-		  params->security == WIFI_SECURITY_TYPE_PSK_SHA256) &&
+		  params->security == WIFI_SECURITY_TYPE_PSK_SHA256 ||
+		  params->security == WIFI_SECURITY_TYPE_WPA_AUTO_PERSONAL) &&
 	     ((params->psk_length < 8) || (params->psk_length > 64) ||
 	      (params->psk_length == 0U) || !params->psk)) ||
 	    ((params->security == WIFI_SECURITY_TYPE_SAE) &&

subsys/net/l2/wifi/wifi_shell.c

@@ -1870,7 +1870,7 @@ SHELL_STATIC_SUBCMD_SET_CREATE(wifi_commands,
 		  "[-b, --band] 0: any band (2:2.4GHz, 5:5GHz, 6:6GHz]\n"
 		  "[-p, --psk]: Passphrase (valid only for secure SSIDs)\n"
 		  "[-k, --key-mgmt]: Key Management type (valid only for secure SSIDs)\n"
-		  "0:None, 1:WPA2-PSK, 2:WPA2-PSK-256, 3:SAE, 4:WAPI, 5:EAP, 6:WEP, 7: WPA-PSK\n"
+		  "0:None, 1:WPA2-PSK, 2:WPA2-PSK-256, 3:SAE, 4:WAPI, 5:EAP, 6:WEP, 7: WPA-PSK, 8: WPA-Auto-Personal\n"
 		  "[-w, --ieee-80211w]: MFP (optional: needs security type to be specified)\n"
 		  ": 0:Disable, 1:Optional, 2:Required.\n"
 		  "[-m, --bssid]: MAC address of the AP (BSSID).\n"