Use otx2_mbox_memcpy() instead of memcpy() to prevent unaligned access.
Fixes: a0645ed0d6ef ("crypto/octeontx2: discover capabilities")
Cc: stable@dpdk.org
Signed-off-by: Danny Patel <dannyp@marvell.com>
Signed-off-by: Anoob Joseph <anoobj@marvell.com>