s390/zcrypt: remove unnecessary (void *) conversions

[ Upstream commit 72c2112c

 ]

Pointer variables of void * type do not require type cast.

Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Link: https://lore.kernel.org/r/20230303052155.21072-1-yuzhe@nfschina.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Stable-dep-of: 4cfca532

 ("s390/zcrypt: fix reply buffer calculations for CCA replies")
Signed-off-by: Sasha Levin <sashal@kernel.org>