ARM: mach-ux500: enable 128KB way L2 cache on DB8540

DB8540 L2 was configured with 64KB way size, but it has 128KB as AP9540.

Fix this by modifying ux500_l2x0_init() to use 128KB way size for all
cpus in the x540 family.
Signed-off-by: Maxime Coquelin <maxime.coquelin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/cache-l2x0.c

@@ -47,8 +47,8 @@ static int __init ux500_l2x0_init(void)
 	/* Unlock before init */
 	ux500_l2x0_unlock();
 
-	/* DB9540's L2 has 128KB way size */
-	if (cpu_is_u9540())
+	/* DBx540's L2 has 128KB way size */
+	if (cpu_is_ux540_family())
 		/* 128KB way size */
 		aux_val |= (0x4 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT);
 	else