flashchips: Add ISSI IS25LP064

Grabbed from mailing list, created by Simon Buhrow. Since no logs were
attached, the chip is marked as untested.

Change-Id: Idc26162fc5a5a429acef546b30b12d8b1f195e0a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/28809
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2 files changed