Add a table-driven implementation of ether_crc32_be(). From Seishi Hiragushi via FreeBSD PR kern/49957.
Add a table-driven implementation of ether_crc32_be().
From Seishi Hiragushi via FreeBSD PR kern/49957.

Also, while we're here, make the loop counter size_t.

ok mcbride@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars