stm class: heartbeat: Switch to use hrtimer_setup()

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://lore.kernel.org/all/c822671342e6ca0437b25f8e24935f09821e389f.1738746904.git.namcao@linutronix.de

Author: covanam

drivers/hwtracing/stm/heartbeat.c

@@ -81,10 +81,8 @@ static int stm_heartbeat_init(void)
 		stm_heartbeat[i].data.type	= STM_USER;
 		stm_heartbeat[i].data.link	= stm_heartbeat_link;
 		stm_heartbeat[i].data.unlink	= stm_heartbeat_unlink;
-		hrtimer_init(&stm_heartbeat[i].hrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_ABS);
-		stm_heartbeat[i].hrtimer.function =
-			stm_heartbeat_hrtimer_handler;
+		hrtimer_setup(&stm_heartbeat[i].hrtimer, stm_heartbeat_hrtimer_handler,
+			      CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 		ret = stm_source_register_device(NULL, &stm_heartbeat[i].data);
 		if (ret)