9pfs: fix some type definitions

To comply with the QEMU coding style.

Signed-off-by: Greg Kurz <groug@kaod.org>
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 52d4663..76f90f2 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -99,10 +99,10 @@
     return ret;
 }
 
-struct dotl_openflag_map {
+typedef struct DotlOpenflagMap {
     int dotl_flag;
     int open_flag;
-};
+} DotlOpenflagMap;
 
 static int dotl_to_open_flags(int flags)
 {
@@ -113,7 +113,7 @@
      */
     int oflags = flags & O_ACCMODE;
 
-    struct dotl_openflag_map dotl_oflag_map[] = {
+    DotlOpenflagMap dotl_oflag_map[] = {
         { P9_DOTL_CREATE, O_CREAT },
         { P9_DOTL_EXCL, O_EXCL },
         { P9_DOTL_NOCTTY , O_NOCTTY },