dwarf2out.c (mem_loc_descriptor): Use DW_OP_const[48]u instead of DW_OP_addr for DW_OP_GNU_push_tls_address operand.

	* dwarf2out.c (mem_loc_descriptor): Use DW_OP_const[48]u
	instead of DW_OP_addr for DW_OP_GNU_push_tls_address operand.
	(loc_list_from_tree): Likewise.
	(output_loc_operands): Handle outputting DW_OP_const[48]u
	with loc->dtprel set.
	(resolve_addr_in_expr): Handle loc->dtprel like DW_OP_addr.

From-SVN: r161958