bpf: arm64: Add support for instructions array

bpf: arm64: Add support for instructions array

Add support for the instructions array map type in the arm64 JIT by
calling bpf_prog_update_insn_ptrs() with the offsets that map
xlated_offset to the jited_offset in the final image. arm64 JIT already
has this offset array which was being used for
bpf_prog_fill_jited_linfo() and can be used directly for
bpf_prog_update_insn_ptrs.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Reviewed-by: Anton Protopopov <a.s.protopopov@gmail.com>
Acked-by: Xu Kuohai <xukuohai@huawei.com>
Link: https://lore.kernel.org/r/20251117130732.11107-2-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>