fix bug in lcd refresh

Signed-off-by: Michal Demin <michal.demin@gmail.com>
Fix indentation in lcd-new

Signed-off-by: Michal Demin <michal.demin@gmail.com>
Fix symbols in lcd-new.c

Signed-off-by: Michal Demin <michal.demin@gmail.com>
More additions for supporting ZERO

Signed-off-by: Michal Demin <michal.demin@gmail.com>