ARM: mvebu: drop unnecessary NULL check

Don't check the returned pointer from of_find_compatible_node.
We pass this pointer to of_iomap, which handles np==NULL  correctly.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

Author: martin-kaiser

arch/arm/mach-mvebu/coherency.c

@@ -133,8 +133,6 @@ static void __init armada_370_coherency_init(struct device_node *np)
 
 	cpu_config_np = of_find_compatible_node(NULL, NULL,
 						"marvell,armada-xp-cpu-config");
-	if (!cpu_config_np)
-		goto exit;
 
 	cpu_config_base = of_iomap(cpu_config_np, 0);
 	if (!cpu_config_base) {