platform/x86: ideapad-laptop: add lenovo RESCUER R720-15IKBN to no_hw_rfkill_list

This model does not have a hardware rfkill switch, add it to the
no_hw_rfkill_list to prevent the radio always being blocked.

Reported-by: Roger Jargoyhen <rjargoyhen@gmail.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>