Include common.h in enqueue.cc instead (#1067)

src/enqueue.cc

@@ -17,6 +17,7 @@
 #include "channel.h"
 #include "rocmwrap.h"
 #include "rccl_vars.h"
+#include "common.h"
 #include <cstring> // std::memcpy
 #include <cinttypes> // PRIx64
 

src/include/enqueue.h

@@ -10,7 +10,6 @@
 #include "comm.h"
 #include "group.h"
 #include "collectives.h"
-#include "common.h"
 #include "utils.h"
 
 #define NCCL_MIN_CHANNEL_SIZE (NCCL_LL_THREAD_THRESHOLD*64)