mb/lenovo/x201: Add Lenvovo X201i to the list of X201 variants

The X201 coreboot image is working well on the X201i. Besides, the
X201i seems to be almost identical to the X201 except for the CPU.

Change-Id: Iecc84faf78e7de34fb1add63c20904a5a28c5e9b
Signed-off-by: Matthias Gazzari <mail@qtux.eu>
Reviewed-on: https://review.coreboot.org/25971
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
1 file changed