ntdll: Make wine_server_call() cdecl.

dlls/ntdll/server.c

@@ -312,7 +312,7 @@ unsigned int server_call_unlocked( void *req_ptr )
  *|     }
  *|     SERVER_END_REQ;
  */
-unsigned int wine_server_call( void *req_ptr )
+unsigned int CDECL wine_server_call( void *req_ptr )
 {
     sigset_t old_set;
     unsigned int ret;

include/wine/server.h

@@ -49,7 +49,7 @@ struct __server_request_info
     struct __server_iovec data[__SERVER_MAX_DATA];  /* request variable size data */
 };
 
-extern unsigned int wine_server_call( void *req_ptr );
+extern unsigned int CDECL wine_server_call( void *req_ptr );
 extern void CDECL wine_server_send_fd( int fd );
 extern int CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle );
 extern int CDECL wine_server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd, unsigned int *options );