CHROMIUM: config: Enable CONFIG_SECTION_MISMATCH_FATAL

echo CONFIG_SECTION_MISMATCH_FATAL=y >> chromeos/config/base.config
Run chromeos/scripts/kernelconfig oldconfig and accept the defaults.

BUG=chromium:534254
TEST=cros_workon-[oak,strago] start chromeos-kernel-3_18
     emerge-[oak,strago] chromeos-kernel-3_18: no warning, no errors.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>

Change-Id: Ieddb46e040ceeef83914f92341f49c8489fd66b4
Reviewed-on: https://chromium-review.googlesource.com/303121
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>

chromeos/config/base.config

@@ -1256,6 +1256,7 @@ CONFIG_SCSI_PROC_FS=y
 CONFIG_SCSI_SPI_ATTRS=y
 # CONFIG_SCSI_SRP_ATTRS is not set
 # CONFIG_SCSI_UFSHCD is not set
+CONFIG_SECTION_MISMATCH_FATAL=y
 CONFIG_SECURITY=y
 CONFIG_SECURITYFS=y
 # CONFIG_SECURITY_APPARMOR is not set