next-cube.c: update and improve dma_ops
Rename dma_ops to next_dma_ops and the read/write functions to next_dma_read()
and next_dma_write() respectively, mark next_dma_ops as DEVICE_BIG_ENDIAN and
also improve the consistency of the val variable in next_dma_read() and
next_dma_write().
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <
20231220131641.592826-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>