crypto: qat - Replace kzalloc() + copy_from_user() with memdup_user()

Replace kzalloc() followed by copy_from_user() with memdup_user() to
improve and simplify adf_ctl_alloc_resources(). memdup_user() returns
either -ENOMEM or -EFAULT (instead of -EIO) if an error occurs.

Remove the unnecessary device id initialization, since memdup_user()
(like copy_from_user()) immediately overwrites it.

No functional changes intended other than returning the more idiomatic
error code -EFAULT.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>