vlynq: correct typo of missing "CONFIG_" prefix in ifdef

Fix a typo in the vlynq bus driver which was missing the CONFIG_ prefix to
turn on debugging code.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/vlynq/vlynq.c b/drivers/vlynq/vlynq.c
index 7335433..f05d2a3 100644
--- a/drivers/vlynq/vlynq.c
+++ b/drivers/vlynq/vlynq.c
@@ -76,7 +76,7 @@
 	u32 int_device[8];
 };
 
-#ifdef VLYNQ_DEBUG
+#ifdef CONFIG_VLYNQ_DEBUG
 static void vlynq_dump_regs(struct vlynq_device *dev)
 {
 	int i;