This is a port of Linux kernel commit

    | commit 0501f2e
    | Author: Andreas Fenkart <afenkart@gmail.com>
    | Date:   Thu Nov 5 10:04:23 2015 +0100
    |
    |     mtd: spi-nor: mx25l3205d/mx25l6405d: append SECT_4K
    |
    |     according datasheet both chips can erase 4kByte sectors individually
    |
    |     Signed-off-by: Andreas Fenkart <andreas.fenkart@dev.digitalstrom.org>
    |     Signed-off-by: Brian Norris <computersforpeace@gmail.com>

Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>