hnbgw: Use LOGHNB() to add log context information to log lines

So far we don't really have any way of matching a given log message
to a specific hNB.  Let's use the newly-introduced LOGHNB() macro.

Change-Id: Ia16eed4ca5e9ef231259e94c65105f7586f366bc
diff --git a/src/context_map.c b/src/context_map.c
index dc555bf..f516efe 100644
--- a/src/context_map.c
+++ b/src/context_map.c
@@ -85,11 +85,11 @@
 	}
 
 	if (alloc_cn_conn_id(cn_if_new, &new_scu_conn_id) < 0) {
-		LOGP(DMAIN, LOGL_ERROR, "Unable to allocate CN connection ID\n");
+		LOGHNB(hnb, DMAIN, LOGL_ERROR, "Unable to allocate CN connection ID\n");
 		return NULL;
 	}
 
-	LOGP(DMAIN, LOGL_INFO, "Creating new Mapping RUA CTX %p/%u <-> SCU Conn ID %p/%u\n",
+	LOGHNB(hnb, DMAIN, LOGL_INFO, "Creating new Mapping RUA CTX %p/%u <-> SCU Conn ID %p/%u\n",
 		hnb, rua_ctx_id, cn_if_new, new_scu_conn_id);
 
 	/* alloate a new map entry */
@@ -125,8 +125,7 @@
 	/* we don't allocate new mappings in the CN->HNB
 	 * direction, as the RUA=SCCP=SUA connections are always
 	 * established from HNB towards CN. */
-	LOGP(DMAIN, LOGL_NOTICE, "Unable to resolve map for CN "
-		"connection ID %p/%u\n", cn, scu_conn_id);
+	LOGP(DMAIN, LOGL_NOTICE, "Unable to resolve map for CN " "connection ID %p/%u\n", cn, scu_conn_id);
 	return NULL;
 }