This is the first in a series of changes to wire up all app settings to
be ECM restrictable. We introduce a new method in
RestrictedLockUtilsInternal which determines whether or not a setting is
restricted based on a passed in key. It currently duplicates the current
implementation, but will eventually be replaced by a call to permissions
mainline.
The settings under SpaPrivileged are then updated to have a new
BlockedByEcm which is decided by the RestrictedLockUtilsInternal call.
Bug: 297372999
Test: Manually tested on device. Automaated tests to follow
Change-Id: Ic295bdb41270b0f18f2ba3dffdffc062d532cabe
291e6043bf