blackfin: Use sigsp()
blackfin: Use sigsp()

Use sigsp() instead of the open coded variant.

Signed-off-by: Richard Weinberger <320bca71fc381a4a025636043ca86e734e31cf8b@nod.at>
Acked-by: Steven Miao <eb4bb6630d9afd913be5ae87090c50ac1ba7a4b2@gmail.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs