irqchip/armada-370-xp: Simplify is_percpu_irq() code

Simplify the code in the is_percpu_irq() function. Instead of
  if (condition)
    return true;
  return false;
simply return condition.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/all/20240708151801.11592-9-kabel@kernel.org

drivers/irqchip/irq-armada-370-xp.c

@@ -201,10 +201,7 @@ static inline unsigned int msi_doorbell_end(void)
 
 static inline bool is_percpu_irq(irq_hw_number_t irq)
 {
-	if (irq <= MPIC_MAX_PER_CPU_IRQS)
-		return true;
-
-	return false;
+	return irq <= MPIC_MAX_PER_CPU_IRQS;
 }
 
 /*