[ARM] S3C64XX: Correct the EINT IRQ type configuration

Select the correct EINT configuration register when configuring
the external interrupt level/edge type.

Signed-off-by: Matt Hsu <matt_hsu@openmoko.org>
[ben-linux@fluff.org: description improvement]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c64xx/irq-eint.c b/arch/arm/plat-s3c64xx/irq-eint.c
index 8c01f9c..1f7cc00 100644
--- a/arch/arm/plat-s3c64xx/irq-eint.c
+++ b/arch/arm/plat-s3c64xx/irq-eint.c
@@ -82,7 +82,7 @@
 	if (offs > 27)
 		return -EINVAL;
 
-	if (offs > 15)
+	if (offs <= 15)
 		reg = S3C64XX_EINT0CON0;
 	else
 		reg = S3C64XX_EINT0CON1;