BUILD: threads: Rename SPIN/RWLOCK macros using HA_ prefix

This remove any name conflicts, especially on Solaris.
diff --git a/include/proto/stick_table.h b/include/proto/stick_table.h
index 4e92538..59674f6 100644
--- a/include/proto/stick_table.h
+++ b/include/proto/stick_table.h
@@ -141,7 +141,7 @@
 
 static inline void stksess_kill_if_expired(struct stktable *t, struct stksess *ts, int decrefcnt)
 {
-	SPIN_LOCK(STK_TABLE_LOCK, &t->lock);
+	HA_SPIN_LOCK(STK_TABLE_LOCK, &t->lock);
 
 	if (decrefcnt)
 		ts->ref_cnt--;
@@ -149,7 +149,7 @@
 	if (t->expire != TICK_ETERNITY && tick_is_expired(ts->expire, now_ms))
 		__stksess_kill_if_expired(t, ts);
 
-	SPIN_UNLOCK(STK_TABLE_LOCK, &t->lock);
+	HA_SPIN_UNLOCK(STK_TABLE_LOCK, &t->lock);
 }
 
 /* sets the stick counter's entry pointer */