Since 'sdmac->vc.lock' and 'sdmac->desc' can be used as 'lock' and
'enabled' in 'struct sdma_channel sdmac', remove them.
Signed-off-by: NRobin Gong <yibin.gong@nxp.com>
Reviewed-by: NSascha Hauer <s.hauer@pengutronix.de>
Tested-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NVinod Koul <vkoul@kernel.org>