Add matrix precomp to fq_poly_templates/profile/p-iterated_frobenius.c
Add matrix precomp to fq_poly_templates/profile/p-iterated_frobenius.c

fredrik-johansson/flint2,jpflori/flint2,fredrik-johansson/flint2,wbhart/flint2,jpflori/flint2,wbhart/flint2,dsroche/flint2,dsroche/flint2,jpflori/flint2,dsroche/flint2,wbhart/flint2,fredrik-johansson/flint2,dsroche/flint2,jpflori/flint2