kc1: Include explicit serial baudrate on bootargs

This makes the baudrate for the kernel command line explicit.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
diff --git a/include/configs/kc1.h b/include/configs/kc1.h
index 7f828f7..5a698e0 100644
--- a/include/configs/kc1.h
+++ b/include/configs/kc1.h
@@ -232,7 +232,7 @@
 	"boot_mmc_dev=0\0" \
 	"kernel_mmc_part=7\0" \
 	"recovery_mmc_part=5\0" \
-	"bootargs=mem=512M console=ttyO2\0"
+	"bootargs=console=ttyO2,115200 mem=512M\0"
 
 /*
  * ATAGs