intel/skylake: Fix flash_controller.c compilation

Since this code is not currently being built by coreboot, it
failed compilation.

Change-Id: Ib8a0e1ebc76b7dca3dd785b09398b73abad46366
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12466
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
1 file changed