docs: Fix helm value when deploying pure ipvlan l3 mode
docs: Fix helm value when deploying pure ipvlan l3 mode

Suppress warning message from helm:

warning: skipped value for l7Proxy: Not a table.

Signed-off-by: Chen Yaqi <3971e99bf7add030c2790591f3945e3aadbdd72c@gmail.com>

michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,tklauser/cilium,cilium/cilium,tklauser/cilium,michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,cilium/cilium,cilium/cilium,cilium/cilium,tklauser/cilium,cilium/cilium