Add wipe on login failure to Privacy Settings page

This CL adds information to the Enterprise Privacy Setting page that
tells the user how many times the password can be mistyped before
the device (or the work profile) is forcefully wiped.

Test: make RunSettingsRoboTests
Bug: 32692748

Change-Id: I4ae316802dbf5853ab4eacb0787647372d5e26c2