Revert "crypto: Fix regressions caused by iov_iter changes."

This reverts commit 750d8065d88bc72bd6e1fd9f896a964c35dda818.

Linus already fixed this in his tree so just use what
he did.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc crypto/af_alg.c
Simple merge

diff --cc crypto/algif_skcipher.c
Simple merge