Optimise gf_vec_addmul() by taking GF(b) out of the loop.
Optimise gf_vec_addmul() by taking GF(b) out of the loop.


jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm