dwarf.c: Use more dwarf_vma
    
    binutils/
    2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>
    
    	* dwarf.c (display_loc_list): Use dwarf_vma for offset, base_address
    	and off.
    	(display_loc_list_dwo): Use dwarf_vma for offset.
    	(display_debug_loc): Use dwarf_vma for offset, base_address.
    	(struct range_entry, range_entry_compar): Use dwarf_vma for
    	ranges_offset.
    	(display_debug_ranges): Use dwarf_vma for ranges_offset, offset and
    	base_address.