MIPS: netlogic: remove unnecessary MTD partition probe specification

The cmdlinepart parser is already supported in the default probe.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10071/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>