schema tree BUGFIX lys_find_grouping_up fix
schema tree BUGFIX lys_find_grouping_up fix

The condition was left from a time when
the children were traversed, not siblings.

PavolVican/libyang,PavolVican/libyang,lukasmacko/libyang,PavolVican/libyang,lukasmacko/libyang,PavolVican/libyang,PavolVican/libyang