CVE-2022-49262 crypto: octeontx2 - remove CONFIG_DM_CRYPT check

In the Linux kernel, the following vulnerability has been resolved: crypto: octeontx2 - remove CONFIGDMCRYPT check No issues were found while using the driver with dm-crypt enabled. So CONFIGDMCRYPT check in the driver can be removed. This also fixes the NULL pointer dereference in driver release...