[pm] Rename scanSystemPackageLI to scanPackageForInitLI

This method is used to scan packages for initialization during boot time, not just for system packages.

Change-Id: Ie737af9764fba4675563ae70a5bfce6a7a47caf5
BUG: 355507255
FIXES: 355507255
Flag: EXEMPT renaming
1 file changed