Reapply "Allow spoofing signingInfo for microG Companion/Services"

- Spoof PackageInfo signingInfo + signatures so that
  G suite apps do not complain anymore.

Compared to the previous CalyxOS patch, this fixes:
E AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: main
E AndroidRuntime: java.lang.NullPointerException: Attempt to read from field 'android.content.pm.Signature[] android.content.pm.PackageInfo.signatures' on a null object reference in method 'android.content.pm.PackageInfo com.android.server.pm.ComputerEngine.generatePackageInfo(com.android.server.pm.pkg.PackageStateInternal, long, int)'

Co-authored-by: althafvly <althafvly@gmail.com>
Co-authored-by: Michael Bestas <mkbestas@gmail.com>
Original-Change-Id: I86f182c9e1d18b0e997803842577a90ef740cfd1
Change-Id: Ie480255ed3bd80809803698752cafb3a2ecc3a33
1 file changed