Remove conflicting NAND ID

There are two NAND entries with ID 0xDC and this obviously causes problems.
In the kernel, they punted the first entry, so we should do the same.

See this upstream e-mail for more info:
http://lists.infradead.org/pipermail/linux-mtd/2007-July/018795.html



Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>