avr.h (progmem_section): Remove Declaration.

avr.h (progmem_section): Remove Declaration.

	* config/avr/avr.h (progmem_section): Remove Declaration.
	* config/avr/avr.c (progmem_section): Make static and rename to
	progmem_swtable_section.
	(avr_output_addr_vec_elt): No need to switch sections.
	(avr_asm_init_sections): Use output_section_asm_op as section
	callback for progmem_swtable_section.
	(avr_output_progmem_section_asm_op): Remove Function.
	(TARGET_ASM_FUNCTION_RODATA_SECTION): New Define.
	(avr_asm_function_rodata_section): New static Function.
	* config/avr/elf.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Output
	alignment 2**1 for jump tables.

From-SVN: r178525