mainboard/google/kahlee: Update RW_LEGACY size in fmap

Add the unused space to the RW_LEGACY area.

BUG=b:79433466
TEST=None

Change-Id: I897d1dcf75466fe9bdb814c8a9db0fecb5c42af6
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/26221
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/mainboard/google/kahlee/variants/grunt/chromeos.fmd b/src/mainboard/google/kahlee/variants/grunt/chromeos.fmd
index 749546d..336aced 100644
--- a/src/mainboard/google/kahlee/variants/grunt/chromeos.fmd
+++ b/src/mainboard/google/kahlee/variants/grunt/chromeos.fmd
@@ -23,8 +23,8 @@
 		}
 		RW_VPD@0x465000 0x2000
 		RW_NVRAM@0x467000 0x5000
-		RW_UNUSED@0x46C000 0x594000
-		RW_LEGACY@0xA00000 0x200000
+		RW_UNUSED@0x46C000 0x14000
+		RW_LEGACY@0x480000 0x780000
 
 		WP_RO@0xC00000 0x400000 {
 			RO_VPD@0x0 0x4000