EDAC: Add DDR3 LRDIMM entries to edac_mem_types

F15hM60h adds support for DDR4 and DDR3 LRDIMMs. Add them here.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/1411070218-10258-1-git-send-email-Aravind.Gopalakrishnan@amd.com


[ Boris: improve comments. ]
Signed-off-by: Borislav Petkov <bp@suse.de>