pie: rearrange macros in order of length

Rearrange macros in order of length and align the values to
improve readability.
Signed-off-by: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: Gautam Ramakrishnan <gautamramk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/pie.h

@@ -8,10 +8,10 @@
 #include <net/inet_ecn.h>
 #include <net/pkt_sched.h>
 
+#define MAX_PROB	U64_MAX
+#define DTIME_INVALID	U64_MAX
 #define QUEUE_THRESHOLD	16384
 #define DQCOUNT_INVALID	-1
-#define DTIME_INVALID U64_MAX
-#define MAX_PROB U64_MAX
 #define PIE_SCALE	8
 
 /* parameters used */