dt-bindings: interconnect: qcom,msm8998-bwmon: Add support for sc7280 BWMONs

Add a compatible for the cpu BWMON (version 4) instance and one
for the llcc BWMON (version 5) found in sc7280 SoC.

Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220902043511.17130-2-quic_rjendra@quicinc.com