Fix package install flow w.r.t. dexopt

Calling dexopt before the applicationInfo gets the uid is wrong.
Dexopt needs to be able to set the GID of the odex file to the
UserHandle.getSharedAppGid(pkg.applicationInfo.uid) and that is
possible only with a valid uid.

Move the dexopt logic after installNewPackageLIF/replacePackageLIF
to ensure that we get a valid uid.

Bug: 69331247
Test: adb install & check the GID of the compiler artifacts
Change-Id: I2434a1a0b9015091a9af2009b3f785b7a16e1256