Documentation: bpf: Add implementation notes documentations to table of contents

Sphinx reported warnings on missing implementation notes documentations in the
table of contents:

Documentation/bpf/clang-notes.rst: WARNING: document isn't included in any toctree
Documentation/bpf/linux-notes.rst: WARNING: document isn't included in any toctree

Add these documentations to the table of contents (index.rst) of BPF
documentation to fix the warnings.

Link: https://lore.kernel.org/linux-doc/[email protected]/
Fixes: 6c7aaffb24efbd ("bpf, docs: Move Clang notes to a separate file")
Fixes: 6166da0a02cde2 ("bpf, docs: Move legacy packet instructions to a separate file")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Bagas Sanjaya <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>

0 files changed, 0 insertions, 0 deletions