dmaengine: fsl-edma: refactor using devm_clk_get_enabled

Use devm_clk_get_enabled in probe code to reduce error checks,
thereby enhancing readability

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20230821161617.2142561-8-Frank.Li@nxp.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>