smaug: Generate 16MB image

Generate a 16MB image to accommodate larger SPI flash.

CQ-DEPEND=CL:272999, CL:*218787
BUG=chrome-os-partner:40565
BRANCH=none
TEST=compile coreboot and check that coreboot.rom is 16MB

Change-Id: I897dd9e81e1509eb8972a8ae9b01be5d4e4716a4
Signed-off-by: Stephen Barber <smbarber@chromium.org>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/272994
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
diff --git a/src/mainboard/google/smaug/Kconfig b/src/mainboard/google/smaug/Kconfig
index c654e04..d8a3871 100644
--- a/src/mainboard/google/smaug/Kconfig
+++ b/src/mainboard/google/smaug/Kconfig
@@ -22,7 +22,7 @@
 config BOARD_SPECIFIC_OPTIONS # dummy
         def_bool y
 	select BOARD_ID_AUTO
-	select BOARD_ROMSIZE_KB_8192
+	select BOARD_ROMSIZE_KB_16384
 	select CHROMEOS
 	select CHROMEOS_VBNV_EC
 	select EC_GOOGLE_CHROMEEC