This commit fixes pre-counter block (J0) padding by clearing
four most significant bytes before setting initial counter value.
Fixes: b2bb359747 ("crypto/aesni_gcm: move pre-counter block to driver")
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: Piotr Azarewicz <piotrx.t.azarewicz@intel.com>