dmaengine: nbpfaxi: Provide some missing attribute docs and split out slave info

Fixes the following W=1 kernel build warning(s):

 drivers/dma/nbpfaxi.c:157: warning: Function parameter or member 'chan' not described in 'nbpf_desc'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'tasklet' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'slave_src_addr' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'slave_src_width' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'slave_src_burst' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'slave_dst_addr' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'slave_dst_width' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'slave_dst_burst' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'running' not described in 'nbpf_channel'
 drivers/dma/nbpfaxi.c:220: warning: Function parameter or member 'paused' not described in 'nbpf_channel'

Signed-off-by: Lee Jones <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Yonghong Song <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: John Fastabend <[email protected]>
Cc: KP Singh <[email protected]>
Cc: Guennadi Liakhovetski <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

0 files changed, 0 insertions, 0 deletions