Don't require seinfo for privapps

Relax the requirement to have both seinfo and name specified for
privapps. The original reason for requiring both was because, normally,
a package can only be uniquely specified by both name and signature,
otherwise package squatting could occur. However, privapps are
pre-installed, so the concerns about the potential for package squatting
are eliminated. This change will drastically simplify sepolicy
configuration for priv-apps.

Bug: 142672293
Test: Flashed a device with this build and verified it boots.
Change-Id: I68e6245ae004888bdcc91df410ce15a8fd5da583
1 file changed