EDAC, mv64x60: Fix pdata->name

Change this from mpc85xx_pci_err to mv64x60_pci_err. The former is
likely a hangover from when this driver was created.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20170518083135.28048-3-chris.packham@alliedtelesis.co.nz


Signed-off-by: Borislav Petkov <bp@suse.de>