qcacmn: Fix CFI failure caused by dfs_remove_from_nol

The parameter of callback of kernel struct hrtimer is itself, not
qdf_hrtimer_data_t. CFI failure happens if the function pointers
does not have the same type as the function that's called.
Add a new API __qdf_hrtimer_cb and assign it to hrtimer->function.

Change-Id: I9cf753272dd37635e82defac6cf7258c7a70425d
CRs-Fixed: 3245385

umac/dfs/core/src/misc/dfs_cac.c

@@ -168,11 +168,9 @@ void dfs_process_cac_completion(void *context)
 static enum qdf_hrtimer_restart_status
 dfs_cac_timeout(qdf_hrtimer_data_t *arg)
 {
-	struct wlan_dfs *dfs = NULL;
-	void *ptr = (void *)arg;
-	qdf_hrtimer_data_t *thr = container_of(ptr, qdf_hrtimer_data_t, u);
+	struct wlan_dfs *dfs;
 
-	dfs = container_of(thr, struct wlan_dfs, dfs_cac_timer);
+	dfs = container_of(arg, struct wlan_dfs, dfs_cac_timer);
 
 	if (dfs_is_hw_mode_switch_in_progress(dfs))
 		dfs->dfs_defer_params.is_cac_completed = true;

umac/dfs/core/src/misc/dfs_nol.c

@@ -235,10 +235,8 @@ static enum qdf_hrtimer_restart_status
 dfs_remove_from_nol(qdf_hrtimer_data_t *arg)
 {
 	struct dfs_nolelem *nol_arg;
-	void *ptr = (void *)arg;
-	qdf_hrtimer_data_t *thr = container_of(ptr, qdf_hrtimer_data_t, u);
 
-	nol_arg = container_of(thr, struct dfs_nolelem, nol_timer);
+	nol_arg = container_of(arg, struct dfs_nolelem, nol_timer);
 
 	qdf_sched_work(NULL, &nol_arg->nol_timer_completion_work);