gbproxy: Count more GSM 04.08 messages

Extend the ul/dl counting to count the usual messages on the
Gb interface. Add counters for the attach, routing area update,
pdp context activation and deactivation procedures. Update the
test result with the new counters.
diff --git a/openbsc/src/gprs/gb_proxy_peer.c b/openbsc/src/gprs/gb_proxy_peer.c
index b65fc17..c2cdd0e 100644
--- a/openbsc/src/gprs/gb_proxy_peer.c
+++ b/openbsc/src/gprs/gb_proxy_peer.c
@@ -51,10 +51,27 @@
 	{ "mod-err",	   "Patch error: other              " },
 	{ "attach-reqs",   "Attach Request count            " },
 	{ "attach-rejs",   "Attach Reject count             " },
+	{ "attach-acks",   "Attach Accept count             " },
+	{ "attach-cpls",   "Attach Completed count          " },
+	{ "ra-upd-reqs",   "RoutingArea Update Request count" },
+	{ "ra-upd-rejs",   "RoutingArea Update Reject count " },
+	{ "ra-upd-acks",   "RoutingArea Update Accept count " },
+	{ "ra-upd-cpls",   "RoutingArea Update Compltd count" },
+	{ "gmm-status",    "GMM Status count           (BSS)" },
+	{ "gmm-status",    "GMM Status count          (SGSN)" },
+	{ "detach-reqs",   "Detach Request count            " },
+	{ "detach-acks",   "Detach Accept count             " },
+	{ "pdp-act-reqs",  "PDP Activation Request count    " },
+	{ "pdp-act-rejs",  "PDP Activation Reject count     " },
+	{ "pdp-act-acks",  "PDP Activation Accept count     " },
+	{ "pdp-deact-reqs","PDP Deactivation Request count  " },
+	{ "pdp-deact-acks","PDP Deactivation Accept count   " },
 	{ "tlli-unknown",  "TLLI from SGSN unknown          " },
 	{ "tlli-cache",    "TLLI cache size                 " },
 };
 
+osmo_static_assert(ARRAY_SIZE(peer_ctr_description) == GBPROX_PEER_CTR_LAST, everything_described);
+
 static const struct rate_ctr_group_desc peer_ctrg_desc = {
 	.group_name_prefix = "gbproxy.peer",
 	.group_description = "GBProxy Peer Statistics",