soc: qcom: Skip clearing modem FW region post load failure

In existing implementation, we are clearing fw region when loading fails
midway. This is not in consonance with MBA design so differentiate
between modem and other PIL modules. While at it, rectify the data type
of subsys_state in qmi_client_info as well.

Change-Id: I985456fca42346947eac24df5bf66599dcbf4c53
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>