sb_edac: fix socket detection on Ivy Bridge controllers

This patch fixes the obvious bug while handling the socket/HA bitmask used in
Ivy Bridge memory controllers.

Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/edac/sb_edac.c

@@ -616,7 +616,7 @@ static u8 get_node_id(struct sbridge_pvt *pvt)
 static inline u8 sad_pkg_socket(u8 pkg)
 {
 	/* on Ivy Bridge, nodeID is SASS, where A is HA and S is node id */
-	return (pkg >> 3) | (pkg & 0x3);
+	return ((pkg >> 3) << 2) | (pkg & 0x3);
 }
 
 static inline u8 sad_pkg_ha(u8 pkg)