Allow pre-commit confirmation toggle-able via resource config

Currently, the pre-commit confirmation is controlled by device config
and default value is true. This makes the feature default enabled.
Even partners update the default value to false, it still can be
overrided by device config mechanism.

It is possible the partners would like to disable the feature so in
this change, we allow the feature can be toggled by resource config,
the value should not be overrided by device config.

Bug: 272507743
Test: atest PreapprovalInstallTest

Change-Id: I2fb45bb6da608d6772335d63d452d60560bcce27