Merge branch 'Fix up bpf_jit_limit some more'

Lorenz Bauer says:

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Fix some inconsistencies of bpf_jit_limit on non-x86 platforms.
I've dropped exposing bpf_jit_current since we couldn't agree on
file modes, correct names, etc.
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Signed-off-by: Alexei Starovoitov <ast@kernel.org>