arm64: defconfig: enable Qualcomm Bandwidth Monitor

Enable the Qualcomm Bandwidth Monitor to allow scaling interconnects
depending on bandwidth usage between CPU and memory.  This is used
already on Qualcomm SDM845 SoC.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220704121730.127925-4-krzysztof.kozlowski@linaro.org