Add helm support for custom_cni deployment (#10529)

* Add helm support for custom_cni deployment

* Linting correction

* Ansible linting correction

* Add test packet with values

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

* Add custom_cni configuration file with comments

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

* Default values cleanup

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

* Add details to custom_cni configuration file

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

* Set correct yaml type of helm values

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

* Set CNI filesystem ownership to root

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

* Update cilium example parameter name

Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>

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Signed-off-by: Lukáš Kubín <lukas.kubin@gmail.com>