qcacld-3.0: deregister policy mgr cb upon stop modules

There is chance that some active thread is running and
skip stop modules. In that case driver should not
deregister policy mgr callback.
Call hdd_deregister_policy_manager_callback after
active thread check when stop modules.

Change-Id: I5fe3e438e87da0b333ae9b20994e58228fa67918
CRs-Fixed: 2443271

core/hdd/src/wlan_hdd_main.c

@@ -11223,9 +11223,6 @@ int hdd_wlan_stop_modules(struct hdd_context *hdd_ctx, bool ftm_mode)
 	struct target_psoc_info *tgt_hdl;
 
 	hdd_enter();
-
-	hdd_deregister_policy_manager_callback(hdd_ctx->psoc);
-
 	qdf_ctx = cds_get_context(QDF_MODULE_ID_QDF_DEVICE);
 	if (!qdf_ctx) {
 		hdd_err("QDF device context NULL");
@@ -11248,6 +11245,8 @@ int hdd_wlan_stop_modules(struct hdd_context *hdd_ctx, bool ftm_mode)
 		}
 	}
 
+	hdd_deregister_policy_manager_callback(hdd_ctx->psoc);
+
 	/* free user wowl patterns */
 	hdd_free_user_wowl_ptrns();