Update App info behavior for mainline module

As requested by framework team, the mainline module should be considered
as system apps and not stoppable and disable-able. Since many of these
modules provide critical functionality, disabling them can result in a
very unstable device.

According to the request, Settings will apply below changes to App info
page for protecting mainline modules:
- Hide "Force stop" and "Disable" in App info.
- Disable "Clear storage" and "Clear cache" in "Storage & cache".

Since the mainline module checking API interface changed, also change
the dependent files and test cases.

Fixes: 156955322
Test: robotest and verify "Cell Broadcast Service" in App info
Change-Id: Ibc239bdaf3364eda541a33add382364cfdc6fc9b