dt-bindings: interconnect/msm8996-cbf: add defines to be used by CBF

On msm8996 CBF interconnects power and performance CPU clusters. Add
corresponding interconnect defines to be used in device trees.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Yassine Oudjana <y.oudjana@protonmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230512001334.2983048-2-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>