This patch makes SPARC fabsl implementation use libm_alias_ldouble, to
prepare them for also defining _Float128 function aliases.
Tested with build-many-glibcs.py that installed stripped shared
libraries (sparc64-linux-gnu and sparcv9-linux-gnu) are unchanged by
the patch.
* sysdeps/sparc/sparc32/fpu/s_fabsl.c: Include
<libm-alias-ldouble.h>.
(fabsl): Define using libm_alias_ldouble.
* sysdeps/sparc/sparc64/fpu/s_fabsl.c: Include
<libm-alias-ldouble.h>.
(fabsl): Define using libm_alias_ldouble.
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