request: always enable DEBUG_PROGRESS_START/CHECK

Let users always able to set MPIR_CVAR_DEBUG_PROGRESS_TIMEOUT regardless
whether --enable-g=progress is enabled during build. It only adds a null
if check unless the TIMEOUT cvar is set.

Add --enable-g=progress will provide additional request info on timeout
dump.

Author: hzhou

src/include/mpir_request.h

@@ -319,6 +319,12 @@ extern MPIR_Request MPIR_Request_direct[MPIR_REQUEST_PREALLOC];
         } \
     } while (0)
 
+#else
+
+#define MPIR_REQUEST_SET_INFO(req, ...) do { } while (0)
+#define MPIR_REQUEST_DEBUG(req) do { } while (0)
+#endif
+
 #define DEBUG_PROGRESS_START \
     int iter = 0; \
     bool progress_timed_out = false; \
@@ -346,14 +352,6 @@ extern MPIR_Request MPIR_Request_direct[MPIR_REQUEST_PREALLOC];
         } \
     }
 
-#else
-
-#define MPIR_REQUEST_SET_INFO(req, ...) do { } while (0)
-#define MPIR_REQUEST_DEBUG(req) do { } while (0)
-#define DEBUG_PROGRESS_START do {} while (0)
-#define DEBUG_PROGRESS_CHECK do {} while (0)
-#endif
-
 void MPII_init_request(void);
 
 /* To get the benefit of multiple request pool, device layer need register their per-vci lock