Revert "mac80211: use a struct for bss->mesh_config"

This reverts commit 6c4711b469.

That patch breaks mesh config comparison between beacons/probe reponses, so
every beacon from a mesh network would be added as a new bss. Since the
comparison has to be performed for every received beacon I believe it is best to
save the mesh config in a format easy to compare, rather than do a bunch of
unaligned accesses to compare field by field.

Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/mesh.c

@@ -11,6 +11,10 @@
 #include "ieee80211_i.h"
 #include "mesh.h"
 
+#define PP_OFFSET 	1		/* Path Selection Protocol */
+#define PM_OFFSET	5		/* Path Selection Metric   */
+#define CC_OFFSET	9		/* Congestion Control Mode */
+#define CAPAB_OFFSET 17
 #define ACCEPT_PLINKS 0x80
 
 int mesh_allocated;