[qca-nss-drv] Add PPDU metadata information type to extended data types.

Change-Id: Ie76c9261851da16032212e0c37a22ee34bdbbb4d
Signed-off-by: Radha krishna Simha Jiguru <rjiguru@codeaurora.org>
diff --git a/nss_wifi.c b/nss_wifi.c
index fb2ec65..315b438 100644
--- a/nss_wifi.c
+++ b/nss_wifi.c
@@ -199,6 +199,7 @@
 	nss_assert(nss_ctx);
 	nss_assert((if_num >= NSS_MAX_VIRTUAL_INTERFACES) && (if_num < NSS_MAX_NET_INTERFACES));
 
+	nss_ctx->nss_top->wifi_msg_callback = NULL;
 	nss_core_unregister_subsys_dp(nss_ctx, if_num);
 }