Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/net/9p/util.c b/net/9p/util.c
index b84619b..da6af81 100644
--- a/net/9p/util.c
+++ b/net/9p/util.c
@@ -67,7 +67,7 @@
 
 /**
  * p9_idpool_destroy - create a new per-connection id pool
- * @p: idpool to destory
+ * @p: idpool to destroy
  */
 
 void p9_idpool_destroy(struct p9_idpool *p)