mtd: maps: ceiva: do not return random numbers

When machine_is_ceiva() returns zero, 'clps_setup_flash()' returns a
value of an unitialized variable. Fix this.

Spotted by David Binderman.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c
index d41f347..c09f4f5 100644
--- a/drivers/mtd/maps/ceiva.c
+++ b/drivers/mtd/maps/ceiva.c
@@ -253,7 +253,7 @@
 
 static int __init clps_setup_flash(void)
 {
-	int nr;
+	int nr = 0;
 
 #ifdef CONFIG_ARCH_CEIVA
 	if (machine_is_ceiva()) {