C-SKY: Add cases for csky fpuv3 instructions.

C-SKY: Add cases for csky fpuv3 instructions.

gcc/testsuite/ChangeLog:

	* gcc.target/csky/fpuv3/fpuv3.exp: New.
	* gcc.target/csky/fpuv3/fpv3_div.c: New.
	* gcc.target/csky/fpuv3/fpv3_fadd.c: New.
	* gcc.target/csky/fpuv3/fpv3_fdtos.c: New.
	* gcc.target/csky/fpuv3/fpv3_fftoi_rm.c: New.
	* gcc.target/csky/fpuv3/fpv3_fftoi_rz.c: New.
	* gcc.target/csky/fpuv3/fpv3_fhtos.c: New.
	* gcc.target/csky/fpuv3/fpv3_fitof.c: New.
	* gcc.target/csky/fpuv3/fpv3_fmov.c: New.
	* gcc.target/csky/fpuv3/fpv3_fmovi.c: New.
	* gcc.target/csky/fpuv3/fpv3_fmula.c: New.
	* gcc.target/csky/fpuv3/fpv3_fmuls.c: New.
	* gcc.target/csky/fpuv3/fpv3_fneg.c: New.
	* gcc.target/csky/fpuv3/fpv3_fnmula.c: New.
	* gcc.target/csky/fpuv3/fpv3_fnmuls.c: New.
	* gcc.target/csky/fpuv3/fpv3_fstod.c: New.
	* gcc.target/csky/fpuv3/fpv3_fstoh.c: New.
	* gcc.target/csky/fpuv3/fpv3_fsub.c: New.
	* gcc.target/csky/fpuv3/fpv3_fxtof.c: New.
	* gcc.target/csky/fpuv3/fpv3_h.c: New.
	* gcc.target/csky/fpuv3/fpv3_hs.c: New.
	* gcc.target/csky/fpuv3/fpv3_hsz.c: New.
	* gcc.target/csky/fpuv3/fpv3_hz.c: New.
	* gcc.target/csky/fpuv3/fpv3_ls.c: New.
	* gcc.target/csky/fpuv3/fpv3_lsz.c: New.
	* gcc.target/csky/fpuv3/fpv3_lt.c: New.
	* gcc.target/csky/fpuv3/fpv3_ltz.c: New.
	* gcc.target/csky/fpuv3/fpv3_max.c: New.
	* gcc.target/csky/fpuv3/fpv3_min.c: New.
	* gcc.target/csky/fpuv3/fpv3_mul.c: New.
	* gcc.target/csky/fpuv3/fpv3_mula.c: New.
	* gcc.target/csky/fpuv3/fpv3_muls.c: New.
	* gcc.target/csky/fpuv3/fpv3_ne.c: New.
	* gcc.target/csky/fpuv3/fpv3_nez.c: New.
	* gcc.target/csky/fpuv3/fpv3_recip.c: New.
	* gcc.target/csky/fpuv3/fpv3_sqrt.c: New.
	* gcc.target/csky/fpuv3/fpv3_unordered.c: New.