uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion

Conversion of this driver to use UIO_MEM_DMA_COHERENT for
dma_alloc_coherent memory instead of UIO_MEM_PHYS.

Signed-off-by: Chris Leech <cleech@redhat.com>
Link: https://lore.kernel.org/r/20240205200257.138376-1-cleech@redhat.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>