bachmann/ot200: Fix cmos.layout.

In current cmos.layout baud_rate overlaps with hardcoded reboot byte.
Fix the layout and provide the default for upgrade.

Change-Id: I979b8743c4aab6f17b3acf61b92a74a333203379
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4804
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

src/mainboard/bachmann/ot200/Kconfig

@@ -15,6 +15,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select PLL_MANUAL_CONFIG
 	select CORE_GLIU_500_266
 	select HAVE_OPTION_TABLE
+	select HAVE_CMOS_DEFAULT
 
 config MAINBOARD_DIR
 	string

src/mainboard/bachmann/ot200/cmos.default

@@ -0,0 +1,4 @@
+boot_option=Fallback
+last_boot=Fallback
+baud_rate=115200
+debug_level=Spew

src/mainboard/bachmann/ot200/cmos.layout

@@ -24,10 +24,14 @@ entries
 # RTC reserved
 0          384       r       0        reserved_memory
 
+384          1       e       4        boot_option
+385          1       e       4        last_boot
+388          4       r       0        reboot_bits
+
 # -----------------------------------------------------------------
 # coreboot config options: console
-384          3       e       1        baud_rate
-387          4       e       2        debug_level
+392          3       e       1        baud_rate
+395          4       e       2        debug_level
 
 # -----------------------------------------------------------------
 # coreboot config options: check sums
@@ -53,9 +57,10 @@ enumerations
 2     6     Info
 2     7     Debug
 2     8     Spew
-
+4     0     Fallback
+4     1     Normal
 checksums
 
-checksum 400 1007 1008
+checksum 392 1007 1008