h8300-protos.h: Change emit_a_rotate to output_a_rotate.

h8300-protos.h: Change emit_a_rotate to output_a_rotate.

	* config/h8300/h8300-protos.h: Change emit_a_rotate to
	output_a_rotate.  Add a prototype for compute_a_rotate_length.
	* config/h8300/h8300.c (emit_a_rotate): Change to
	output_a_rotate.
	(compute_a_rotate_length): New.
	(h8300_adjust_insn_length): Remove.
	* config/h8300/h8300.h (ADJUST_INSN_LENGTH): Remove.
	* config/h8300/h8300.md (adjust_length): Remove.
	(*rotlqi3_1): Use output_a_rotate and compute_a_rotate_length.
	(*rotlhi3_1): Likewise.
	(*rotlsi3_1): Likewise.

From-SVN: r68528