Compute the HildonPickerDialog size request correctly in portrait mode
Compute the HildonPickerDialog size request correctly in portrait mode

Fixes: NB#158695 (HildonTouchSelector looks bad in portrait mode)

Signed-off-by: Claudio Saavedra <2fa888f1b2aa8ccd00ea71d86ce5ea3c170fc1b5@igalia.com>

community-ssu/hildon,archlinuxarm-n900/libhildon,archlinuxarm-n900/libhildon,community-ssu/hildon,archlinuxarm-n900/libhildon,community-ssu/hildon