usb: dwc3: imx8mp: Fix smatch warning

dwc3_imx8mp_pm_resume() warn: 'dwc3_imx->suspend_clk'
from clk_prepare_enable() not released

Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>

Link: https://lore.kernel.org/r/20231215143458.158810-1-himanshu.bhavani@siliconsignals.io


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>