drm/xe/oa: Switch to use hrtimer_setup()

drm/xe/oa: 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: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://lore.kernel.org/all/08238e193b1f63ae7d5d607fa975420735a869a5.1738746904.git.namcao@linutronix.de