EDAC, sb_edac: Drop NUM_CHANNELS from 8 back to 4

We don't need this quirk anymore now that the EDAC memory controller
representation matches the hardware.

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170523000834.87881-1-qiuxu.zhuo@intel.com
[ Commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>

drivers/edac/sb_edac.c

@@ -279,7 +279,7 @@ static const u32 correrrthrsld[] = {
  * sbridge structs
  */
 
-#define NUM_CHANNELS		8	/* 2MC per socket, four chan per MC */
+#define NUM_CHANNELS		4	/* Max channels per MC */
 #define MAX_DIMMS		3	/* Max DIMMS per channel */
 #define KNL_MAX_CHAS		38	/* KNL max num. of Cache Home Agents */
 #define KNL_MAX_CHANNELS	6	/* KNL max num. of PCI channels */