util/oslib-win32: Fix compiling with Clang from MSYS2

Clang complains:

../util/oslib-win32.c:483:56: error: omitting the parameter name in a
 function definition is a C2x extension [-Werror,-Wc2x-extensions]
win32_close_exception_handler(struct _EXCEPTION_RECORD*,
                                                       ^
Fix it by adding parameter names.

Message-Id: <20230728142748.305341-4-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

util/oslib-win32.c

@@ -480,8 +480,9 @@ int qemu_bind_wrap(int sockfd, const struct sockaddr *addr,
 }
 
 EXCEPTION_DISPOSITION
-win32_close_exception_handler(struct _EXCEPTION_RECORD*,
-                              void*, struct _CONTEXT*, void*)
+win32_close_exception_handler(struct _EXCEPTION_RECORD *exception_record,
+                              void *registration, struct _CONTEXT *context,
+                              void *dispatcher)
 {
     return EXCEPTION_EXECUTE_HANDLER;
 }