"move_labels" argument and corresponding call to xtensa_move_labels.
(md_assemble): Add a separate call to xtensa_move_labels and remove
argument for call to xtensa_mark_literal_pool_location.
(xtensa_literal_position, xtensa_switch_to_literal_fragment): Fix
calls to xtensa_mark_literal_pool_location.
(xtensa_create_local_symbol): Delete and inline the code into...
(xtensa_create_literal_symbol): ...here.
(xtensa_frob_label): Combine conditionals.
(expression_maybe_register, xtensa_symbol_new_hook,
fix_new_exp_in_seg): Use symbol_get_tc.
