dmaengine: dw_edma: correct kernel-doc warnings in <linux/dma/edma.h>

dmaengine: dw_edma: correct kernel-doc warnings in <linux/dma/edma.h>

Use the correct enum name in its kernel-doc heading.
Add ending ':' to struct member names.
Drop the @id: kernel-doc entry since there is no struct member named 'id'.

edma.h:46: warning: expecting prototype for struct dw_edma_core_ops.
 Prototype was for struct dw_edma_plat_ops instead
Warning: edma.h:101 struct member 'ops' not described in 'dw_edma_chip'
Warning: edma.h:101 struct member 'flags' not described in 'dw_edma_chip'
Warning: edma.h:101 struct member 'reg_base' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'll_wr_cnt' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'll_rd_cnt' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'll_region_wr' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'll_region_rd' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'dt_region_wr' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'dt_region_rd' not described
 in 'dw_edma_chip'
Warning: edma.h:101 struct member 'mf' not described in 'dw_edma_chip'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251101191524.1991135-1-rdunlap@infradead.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>