qcacld-3.0: fix spin lock bad magic issue

The spin lock pm_qos_lock is used in disconnect handler,
but it maybe not initialized if run time pm not enabled.
This will cause spin lock bad magic check failure issue.
Fix it to create spin lock during pm qos notifier register.

spinlock bad magic on CPU#7, kworker/7:2/691
lock : 0xffffff815bf93170, .magic: 00000000,
       .owner: <none>/-1, .owner_cpu: 0
------------[ cut here ]------------
Internal error: Oops at kernel/locking/spinlock_debug.c:73!
Call trace:
spin_dump+0x7c/0x80
do_raw_spin_lock+0xbc/0x124
_raw_spin_lock_irqsave+0x38/0x4c
hdd_cm_disconnect_complete+0x14c/0x2e4 [wlan]
osif_cm_disconnect_comp_ind+0x38/0x8c [wlan]
osif_disconnect_handler+0x200/0x228 [wlan]
osif_cm_disconnect_complete_cb+0x10/0x1c [wlan]
mlme_cm_osif_disconnect_complete+0x40/0x84 [wlan]
cm_notify_disconnect_complete+0x34/0xec [wlan]
cm_disconnect_complete+0x3c/0xdc [wlan]
cm_send_disconnect_resp+0x64/0x90 [wlan]
cm_state_init_event+0xc8/0xe4 [wlan]
wlan_sm_dispatch+0x168/0x1e8 [wlan]
cm_sm_deliver_event+0x11c/0x1b8 [wlan]

Change-Id: Id78e1e13ceded7cfefc40a8a86f74fe976b9aa75
CRs-Fixed: 3055380

core/hdd/src/wlan_hdd_main.c

@@ -4126,13 +4126,14 @@ static int hdd_wlan_register_pm_qos_notifier(struct hdd_context *hdd_ctx)
 {
 	int ret;
 
+	qdf_spinlock_create(&hdd_ctx->pm_qos_lock);
+
 	/* if gRuntimePM is 1 then feature is enabled without CXPC */
 	if (hdd_ctx->config->runtime_pm != hdd_runtime_pm_dynamic) {
 		hdd_debug("Dynamic Runtime PM disabled");
 		return 0;
 	}
 
-	qdf_spinlock_create(&hdd_ctx->pm_qos_lock);
 	hdd_ctx->pm_qos_notifier.notifier_call = wlan_hdd_pm_qos_notify;
 	ret = hdd_pm_qos_add_notifier(hdd_ctx);
 	if (ret)
@@ -4158,6 +4159,7 @@ static void hdd_wlan_unregister_pm_qos_notifier(struct hdd_context *hdd_ctx)
 
 	if (hdd_ctx->config->runtime_pm != hdd_runtime_pm_dynamic) {
 		hdd_debug("Dynamic Runtime PM disabled");
+		qdf_spinlock_destroy(&hdd_ctx->pm_qos_lock);
 		return;
 	}