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30f93c0bc5
Move the SPI2 bus, transfer-size and DMA-alignment constants shared by the full-duplex DMA and half-duplex HD transports into ble_log_prph_spi_common.h. Pin numbers stay Kconfig-driven but fall back to the target's native SPI2 IOMUX pins when configured negative, and default to -1 so both transports use the native pins out of the box; any GPIO number still overrides.