arm.c (output_move_neon): Update comment describing big-endian vector layout.

arm.c (output_move_neon): Update comment describing big-endian vector layout.

	* config/arm/arm.c (output_move_neon): Update comment describing
	big-endian vector layout.
	(arm_assemble_integer): Do not handle big-endian NEON vectors
	specially.
	* config/arm/neon.md (vec_set<mode>_internal, vec_extract<mode>,
	neon_vget_lane<mode>_sext_internal,
	neon_vget_lane<mode>_zext_internal, neon_vget_lane<mode>): Adjust
	element indices for big-endian.

From-SVN: r138847