dt-bindings: interconnect: qcom: qcm2290: Remove RPM bus clocks

After the recent reshuffling, bus clocks are no longer exposed as RPM
clocks. Remove the old description.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230721-topic-icc_bindings-v2-2-e33d5acbf3bd@linaro.org


Signed-off-by: Georgi Djakov <djakov@kernel.org>