ichspi: Fix 100 series PCH (Skylake) support

Pretty subtle missing `else` made flashrom treat Skylake like older
chipsets.

Change-Id: I14bf578964124d4677cb5dfca01c9d1b0d279c9c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reported-by: Youness Alaoui <kakaroto@kakaroto.homelinux.net>
Reviewed-on: https://review.coreboot.org/22832
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
(cherry picked from commit 19eb0792b8439198d7ef0077b8f79f275fa39a9d)
Reviewed-on: https://review.coreboot.org/22944
1 file changed