Add PKTCNT_POLL command to get TX packet counters

- for the new WiFi watchdog
- requires kernel support (see issue 6874044)

Change-Id: Ibb59c1e0df6f5422814f2260588651e0e1490ccc
diff --git a/wpa_supplicant/wpa_cli.c b/wpa_supplicant/wpa_cli.c
index c631cd1..a8e8488 100644
--- a/wpa_supplicant/wpa_cli.c
+++ b/wpa_supplicant/wpa_cli.c
@@ -2935,6 +2935,13 @@
 }
 
 
+static int wpa_cli_cmd_pktcnt_poll(struct wpa_ctrl *ctrl, int argc,
+				   char *argv[])
+{
+	return wpa_ctrl_command(ctrl, "PKTCNT_POLL");
+}
+
+
 static int wpa_cli_cmd_reauthenticate(struct wpa_ctrl *ctrl, int argc,
 				      char *argv[])
 {
@@ -3370,6 +3377,9 @@
 	{ "signal_poll", wpa_cli_cmd_signal_poll,
 	  cli_cmd_flag_none,
 	  "= get signal parameters" },
+	{ "pktcnt_poll", wpa_cli_cmd_pktcnt_poll,
+	  cli_cmd_flag_none,
+	  "= get TX/RX packet counters" },
 	{ "reauthenticate", wpa_cli_cmd_reauthenticate, cli_cmd_flag_none,
 	  "= trigger IEEE 802.1X/EAPOL reauthentication" },
 #ifdef CONFIG_AUTOSCAN