dmaengine: tegra-apb: Remove unneeded initialization of tdc->config_init

There is no need to re-initialize the already initialized variables.
The tdc->config_init=false after driver's probe and after channel's
freeing, so there is no need to re-initialize it on the channel's
allocation.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200209163356.6439-10-digetx@gmail.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/tegra20-apb-dma.c

@@ -1288,7 +1288,6 @@ static int tegra_dma_alloc_chan_resources(struct dma_chan *dc)
 	int ret;
 
 	dma_cookie_init(&tdc->dma_chan);
-	tdc->config_init = false;
 
 	ret = pm_runtime_get_sync(tdma->dev);
 	if (ret < 0)