platform-7D.203-gui.c: fix typos

Created originally on Bitbucket by frantony (Antony Pavlov)

Was already merged in Bitbucket before import, marked as merged by the import user

Source changeset not longer availableat the time of import. Commit listwill look empty

This is fix-typos part of Pull request #158 (closed): boot-hack-related fixes (V2)