A few more Qualcomm Arm64 DeviceTree updates for v6.8 This corrects the rate of the UTMI clock on IPQ6018 USB0. The SDHCI controller on SC7280 gains missing markings for being cache-coherent. For SC8180X a typo in assignment of PCIe refgen clocks is corrected, PCI controllers are marked cache-coherent, and the USB SS PHY interrupts are corrected to allow wakeup. Similarly USB HS PHY and SS PHY interrupts are corrected to allow wakeup on SDM670. On SM8550 the X3 cluster idle state is properly described, and the latency numbers are adjusted for all the idle states. The PM8550 regulator supplies on X1E are corrected to match the driver and binding, and the timer node is updated to avoid an unnecessary validation error.