[OPTIM] counters: move some max numbers to the counters struct

There are a few remaining max values that need to move to counters.
Also, the counters are more often used than some config information,
so get them closer to the other useful struct members for better cache
efficiency.
diff --git a/include/types/proxy.h b/include/types/proxy.h
index aac704d..ac4b419 100644
--- a/include/types/proxy.h
+++ b/include/types/proxy.h
@@ -197,13 +197,11 @@
 	} timeout;
 	char *id, *desc;			/* proxy id (name) and description */
 	struct list pendconns;			/* pending connections with no server assigned yet */
-	int nbpend, nbpend_max;			/* number of pending connections with no server assigned yet */
+	int nbpend;				/* number of pending connections with no server assigned yet */
 	int totpend;				/* total number of pending connections on this instance (for stats) */
 	unsigned int feconn, beconn;		/* # of active frontend and backends sessions */
 	struct freq_ctr fe_sess_per_sec;	/* sessions per second on the frontend */
-	unsigned int fe_sps_max;		/* maximum of new sessions per second seen on the frontend */
 	struct freq_ctr be_sess_per_sec;	/* sessions per second on the backend */
-	unsigned int be_sps_max;		/* maximum of new sessions per second seen on the backend */
 	unsigned int maxconn;			/* max # of active sessions on the frontend */
 	unsigned int fe_sps_lim;		/* limit on new sessions per second on the frontend */
 	unsigned int fullconn;			/* #conns on backend above which servers are used at full load */
@@ -244,6 +242,7 @@
 	                 *rsp_cap_pool;
 	struct pool_head *hdr_idx_pool;         /* pools of pre-allocated int* used for headers indexing */
 	char *req_add[MAX_NEWHDR], *rsp_add[MAX_NEWHDR]; /* headers to be added */
+	struct pxcounters counters;		/* statistics counters */
 	int grace;				/* grace time after stop request */
 	char *check_req;			/* HTTP or SSL request to use for PR_O_HTTP_CHK|PR_O_SSL3_CHK */
 	int check_len;				/* Length of the HTTP or SSL3 request */
@@ -257,8 +256,6 @@
 	int no_options;				/* PR_O_REDISP, PR_O_TRANSP, ... */
 	int no_options2;			/* PR_O2_* */
 
-	struct pxcounters counters;		/* statistics counters */
-
 	struct {
 		const char *file;		/* file where the section appears */
 		int line;			/* line where the section appears */