Use libm_alias_float for aarch64.

Use libm_alias_float for aarch64.

Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes aarch64 libm function implementations use
libm_alias_float to define function aliases.

Tested with build-many-glibcs.py for aarch64-linux-gnu that installed
stripped shared libraries are unchanged by the patch.

	* sysdeps/aarch64/fpu/s_ceilf.c: Include <libm-alias-float.h>.
	(ceilf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_floorf.c: Include <libm-alias-float.h>.
	(floorf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_fmaf.c: Include <libm-alias-float.h>.
	(fmaf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_fmaxf.c: Include <libm-alias-float.h>.
	(fmaxf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_fminf.c: Include <libm-alias-float.h>.
	(fminf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_llrintf.c: Include <libm-alias-float.h>.
	(llrintf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_llroundf.c: Include <libm-alias-float.h>.
	(llroundf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_lrintf.c: Include <libm-alias-float.h>.
	(lrintf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_lroundf.c: Include <libm-alias-float.h>.
	(lroundf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_nearbyintf.c: Include
	<libm-alias-float.h>.
	(nearbyintf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_rintf.c: Include <libm-alias-float.h>.
	(rintf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_roundf.c: Include <libm-alias-float.h>.
	(roundf): Define using libm_alias_float.
	* sysdeps/aarch64/fpu/s_truncf.c: Include <libm-alias-float.h>.
	(truncf): Define using libm_alias_float.