meta-quanta: gbs: fix flash layout offset for 64MiB

Since the addition override for 64MiB, add the flash
size suffix to fix flash layout offset

ref: https://gerrit.openbmc-project.xyz/43876

Signed-off-by: George Hung <george.hung@quantatw.com>
Change-Id: I1a766fb90d79c55d1487e298e9eb16c8c1091165
diff --git a/meta-quanta/meta-gbs/conf/machine/gbs.conf b/meta-quanta/meta-gbs/conf/machine/gbs.conf
index a709dfd..a7a59e9 100644
--- a/meta-quanta/meta-gbs/conf/machine/gbs.conf
+++ b/meta-quanta/meta-gbs/conf/machine/gbs.conf
@@ -15,8 +15,9 @@
 GBMC_KCS_DEV = "ipmi-kcs1"
 
 # Overwrite flash offsets
-FLASH_ROFS_OFFSET = "7168"
-FLASH_RWFS_OFFSET = "62400"
+FLASH_KERNEL_OFFSET_flash-65536 = "2048"
+FLASH_ROFS_OFFSET_flash-65536 = "7168"
+FLASH_RWFS_OFFSET_flash-65536 = "62400"
 FLASH_SIZE = "65536"
 
 PREFERRED_PROVIDER_virtual/obmc-host-ipmi-hw = "gbmc-kcs-config"