* config/tc-xtensa.c (enforce_three_byte_loop_align): New flag.

	* config/tc-xtensa.c (enforce_three_byte_loop_align): New flag.
	(xtensa_setup_hw_workarounds): Set this new flag for older hardware.
	(get_loop_align_size): New.
	(xtensa_end): Skip xtensa_mark_narrow_branches when not aligning.
	(xtensa_mark_zcl_first_insns): Prevent widening of first loop frag.
	(get_text_align_power): Rewrite to handle inputs in the range 2-8.
	(get_noop_aligned_address): Use get_loop_align_size.
	(get_aligned_diff): Likewise.