soc: qcom: Avoid double free of inrush current mitigation driver

Adding default case to handle other events which might be triggered from
modem and adsp schdule free_resource work item when already it has been
freed.

Change-Id: Ibe6a8eae31d70e80fada3a1fc18f8f2bee42dbda
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>