mds-kbdc: fix stack bug when parsing mapping statements

Signed-off-by: Mattias Andrée <maandree@operamail.com>
print parsed tree, of course there are some errors...

Signed-off-by: Mattias Andrée <maandree@operamail.com>
m

Signed-off-by: Mattias Andrée <maandree@operamail.com>