9pfs: Convert V9fsFidState::clunked to bool

This can only be 0 or 1.

Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20210118142300.801516-2-groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>

hw/9pfs/9p.c

@@ -413,7 +413,7 @@ static V9fsFidState *clunk_fid(V9fsState *s, int32_t fid)
     }
     fidp = *fidpp;
     *fidpp = fidp->next;
-    fidp->clunked = 1;
+    fidp->clunked = true;
     return fidp;
 }
 
@@ -544,7 +544,7 @@ static void coroutine_fn virtfs_reset(V9fsPDU *pdu)
 
         /* Clunk fid */
         s->fid_list = fidp->next;
-        fidp->clunked = 1;
+        fidp->clunked = true;
 
         put_fid(pdu, fidp);
     }

hw/9pfs/9p.h

@@ -279,7 +279,7 @@ struct V9fsFidState {
     int open_flags;
     uid_t uid;
     int ref;
-    int clunked;
+    bool clunked;
     V9fsFidState *next;
     V9fsFidState *rclm_lst;
 };