LF-5353: dmaengine: imx-sdma: optimize confused runtime related code

LF-5353: dmaengine: imx-sdma: optimize confused runtime related code

In order to call sdma_runtime_resume, the driver call pm_runtime_get_sync
and pm_runtime_enable when the pm_runtime is false, it may be confused.
The handler of true and false pm_runtime are mixed in sdma_remove function.

This patch calls directly sdma_runtime_resume and remove pm_runtime_enable
when the pm_runtime is false, and separate the handler of true and false
pm_runtime.

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>