amd64_edac: Add Family 16h support

Add code to handle DRAM ECC errors decoding for Fam16h.

Tested on Fam16h with ECC turned on using the mce_amd_inj facility and
works fine.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
[ Boris: cleanups and clarifications ]
Signed-off-by: Borislav Petkov <bp@suse.de>
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 35637d8..2c6f113 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -172,7 +172,8 @@
  */
 #define PCI_DEVICE_ID_AMD_15H_NB_F1	0x1601
 #define PCI_DEVICE_ID_AMD_15H_NB_F2	0x1602
-
+#define PCI_DEVICE_ID_AMD_16H_NB_F1	0x1531
+#define PCI_DEVICE_ID_AMD_16H_NB_F2	0x1532
 
 /*
  * Function 1 - Address Map
@@ -296,6 +297,7 @@
 	K8_CPUS = 0,
 	F10_CPUS,
 	F15_CPUS,
+	F16_CPUS,
 	NUM_FAMILIES,
 };