v5.9.0 fixes

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• sync makefiles and kfio_config.sh with iomemory-vsl
• Move to get_user_pages_fast
• introduce kblock_meta.h to keep code more
• defines replacing unreadable ifdefs for BLK_ALLOC_QUEUE and BLK_QUEUE_SPLIT
• new udev rules from iomemory-vsl
• fix block_device_operations
• replace enum for pci_channel_state to pci_channel_state_t

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Testing with 5.9.6 came back clean, tests with 5.7.1 running.

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5.7.1 came back clean