[coreboot] patch: set dbe62 to have com2 on com1 address

[ron minnich]

I still have no LPC dongle, but I am getting closer. I really liked
this as it shows off the power of our new
config system, the dts. There is a whole function in v2 to make com2
operate at the com1 address. For v3, we just set
a value in the mainboard dts and we're done (in theory ; I can't tell
if this works). DBE62 is getting through a lot of POST
btw but hangs at 13.

I just realized this exampel also shows that you do NOT want all dts
values to be visible in Kconfig.
It would make no sense to change these
values on the dbe62.

Signed-off-by: Ronald G. Minnich

Index: mainboard/artecgroup/dbe62/dts
===================================================================
--- mainboard/artecgroup/dbe62/dts      (revision 630)
+++ mainboard/artecgroup/dbe62/dts      (working copy)
@@ -43,6 +43,10 @@
                        /* GPIO(0-0x20) for INT D:C:B:A, 0xFF=none.
                         * See virtual PIC spec. */
                        enable_gpio_int_route = "0x0D0C0700";
+                       /* we use com2 since that is on the dongle */
+                       com2_enable = "1";
+                       /* Set com2 address to be COM1 */
+                       com2_address = "0x3f8";
                };
        };
 };