sitemp-g1p1: Migrate to new cmos.default approach

Current code just prints warning, defaults match the behaviour of
current code when checksum is incorrect and look sane.

Change-Id: Icda0d3cb3517fc15e6a0ee787b00276d2d435776
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4827
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
diff --git a/src/mainboard/siemens/sitemp_g1p1/Kconfig b/src/mainboard/siemens/sitemp_g1p1/Kconfig
index c930121..8d0ff80 100644
--- a/src/mainboard/siemens/sitemp_g1p1/Kconfig
+++ b/src/mainboard/siemens/sitemp_g1p1/Kconfig
@@ -12,6 +12,7 @@
 	select HAVE_MP_TABLE
 	select HAVE_PIRQ_TABLE
 	select HAVE_OPTION_TABLE
+	select HAVE_CMOS_DEFAULT
 	select SB_HT_CHAIN_UNITID_OFFSET_ONLY
 	select BOARD_ROMSIZE_KB_1024
 	select QRANK_DIMM_SUPPORT