CLEANUP: include: tree-wide alphabetical sort of include files

This patch fixes all the leftovers from the include cleanup campaign. There
were not that many (~400 entries in ~150 files) but it was definitely worth
doing it as it revealed a few duplicates.
diff --git a/src/freq_ctr.c b/src/freq_ctr.c
index 17d2772..ad032a3 100644
--- a/src/freq_ctr.c
+++ b/src/freq_ctr.c
@@ -11,9 +11,9 @@
  */
 
 #include <haproxy/api.h>
-#include <haproxy/tools.h>
-#include <haproxy/time.h>
 #include <haproxy/freq_ctr.h>
+#include <haproxy/time.h>
+#include <haproxy/tools.h>
 
 /* Read a frequency counter taking history into account for missing time in
  * current period. Current second is sub-divided in 1000 chunks of one ms,