edac: correct i82975x error-info reported

to edac-core

fix the totally wrong info w.r.t page,row,dimm-label previously reported to
edac-core by i82975x driver

Signed-off-by: Arvind R. <arvino55@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>