cfb_console: fix build breakage

Commit 09c2e90c "unify version_string"
introduced a build breakage in cfb_console.c

---8<---
cfb_console.c:1497: warning: format '%s' expects type 'char *', but
argument 3 has type 'const char (*)[]'
--->8---

Signed-off-by: Andreas Biemann <andreas.devel@googlemail.com>