s390.c: Rename cfun_set_fpr_bit to cfun_set_fpr_save and cfun_fpr_bit_p to cfun_fpr_s...

s390.c: Rename cfun_set_fpr_bit to cfun_set_fpr_save and cfun_fpr_bit_p to cfun_fpr_save_p.

2013-07-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c: Rename cfun_set_fpr_bit to cfun_set_fpr_save
	and cfun_fpr_bit_p to cfun_fpr_save_p.
	(s390_frame_area, s390_register_info, s390_frame_info)
	(s390_emit_prologue, s390_emit_epilogue)
	(s390_conditional_register_usage): Use the *_REGNUM macros for FPR
	register numbers.
	* config/s390/s390.h: Define *_REGNUM macros for floating point
	register numbers.

From-SVN: r200780