crypto: bcm - Fix pointer arithmetic

mainline inclusion
from mainline-v6.10-rc1
commit 2b3460cbf454c6b03d7429e9ffc4fe09322eb1a9
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5T
CVE: CVE-2024-38579

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2b3460cbf454c6b03d7429e9ffc4fe09322eb1a9



--------------------------------

In spu2_dump_omd() value of ptr is increased by ciph_key_len
instead of hash_iv_len which could lead to going beyond the
buffer boundaries.
Fix this bug by changing ciph_key_len to hash_iv_len.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 9d12ba86 ("crypto: brcm - Add Broadcom SPU driver")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: dengquan <dengquan9@huawei.com>