Use struct ecc_modulo for all mod and redc functions.

ChangeLog

Makefile.in

ecc-192.c

ecc-224.c

ecc-25519.c

ecc-256.c

ecc-384.c

ecc-521.c

ecc-a-to-j.c

ecc-generic-modp.c

ecc-generic-modq.c

ecc-internal.h

ecc-j-to-a.c

ecc-mod.c

ecc-modp.c

ecc-modq.c

ecc-pm1-redc.c

ecc-pp1-redc.c

examples/ecc-benchmark.c

testsuite/ecc-mod-test.c