ARM: davinci: aintc: use writel_relaxed()

Raplace all calls to __raw_writel() with writel_relaxed().
It's safe to do as there's no endianness conversion being
done in the code.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/mach-davinci/irq.c

@@ -36,7 +36,7 @@ static struct irq_domain *davinci_aintc_irq_domain;
 
 static inline void davinci_aintc_writel(unsigned long value, int offset)
 {
-	__raw_writel(value, davinci_aintc_base + offset);
+	writel_relaxed(value, davinci_aintc_base + offset);
 }
 
 static inline unsigned long davinci_aintc_readl(int offset)