Change abuild ROM_IMAGE_SIZE to match the standard s_c_fam10 Config.lb.
The FAM10 code takes up more space in the uncompressed "ROMCC" portion
of coreboot. Also, It is still growing as features are added.

Signed-off-by: Marc Jones <marc.jones@amd.com>

Index: coreboot-v2/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb
===================================================================
--- coreboot-v2.orig/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb	2008-04-25 13:47:58.000000000 -0600
+++ coreboot-v2/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb	2008-04-25 13:52:24.000000000 -0600
@@ -13,7 +13,7 @@
 
 romimage "fallback" 
 	option USE_FALLBACK_IMAGE=1
-	option ROM_IMAGE_SIZE=0x22200
+	option ROM_IMAGE_SIZE=0x3f000
 	option COREBOOT_EXTRA_VERSION=".0-fallback"
 	payload __PAYLOAD__
 end
