bpf: Use BPF prog locking in array macros and cgroup/lirc code.

Replace the preemption disable/enable with BPF prog locking calls.
Including the code paths that go via __bpf_prog_run_save_cb().

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191207.160448.1331251675070842799.davem@davemloft.net