OMAP3: overo : Use ttyO2 instead of ttyS2.

Starting with kernel 2.6.37, the serial ports on the OMAP3 are called
ttyOX, not ttySX.

Signed-off-by: Philip Balister <philip@opensdr.com>
Tested-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
index 2f3743c..6573235 100644
--- a/include/configs/omap3_overo.h
+++ b/include/configs/omap3_overo.h
@@ -155,7 +155,7 @@
 
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"loadaddr=0x82000000\0" \
-	"console=ttyS2,115200n8\0" \
+	"console=ttyO2,115200n8\0" \
 	"mpurate=500\0" \
 	"vram=12M\0" \
 	"dvimode=1024x768MR-16@60\0" \