hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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

Add ima securityfs entries to configure per ima namespace:
- path to the x509 certificate
- ima kernel boot parameters

The x509 certificate will be parsed and loaded when the first process is
born into the new ima namespace, paths are not validated when written.

Kernel boot parameters are pre-parsed and applied when the first process
is born into the
new namespace.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>