ARM: 8892/1: EDAC: Add missing debugfs_create_x32 wrapper

We already have wrappers for x8 and x16, so add the missing x32 one.

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>