pa.c (hppa_encode_label): Don't drop '*' from function labels.

	* pa.c (hppa_encode_label): Don't drop '*' from function labels.
	(pa_strip_name_encoding): Strip '@' and '*', in that order.
	* pa.h (ASM_OUTPUT_LABELREF): Output user_label_prefix except when
	there is a '*' prefix in NAME.

From-SVN: r57664