google/reef: Add NVRAM and LEGACY sections to chromeos.fmd

Now that the flash size is increased to 16MiB, add RW_NVRAM and
RW_LEGACY sections to chromeos.fmd file.

BUG=chrome-os-partner:54390

Change-Id: I6c79d35295c4bc774f05f8045ac920474d7a791f
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15192
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/google/reef/chromeos.fmd

@@ -32,6 +32,8 @@ FLASH 16M {
 		FW_MAIN_B(CBFS)@0x10000 0x162fc0
 		RW_FWID_B@0x172fc0 0x40
 	}
+	RW_NVRAM@0xb00000 0x6000
+	RW_LEGACY(CBFS)@0xb06000 0x200000
 	DEVICE_EXTENSION@0xf7f000 0x80000
 }