Remove dependency on InstallArgs during Package Verification

* We use a subset of fields from InstallParams to create
InstallArgs. Out of those fields, only installFlags is not final.
So, using any field except installFlags on InstallArgs, is same as using
them from InstallParams directly.

* We now create the InstallArgs at the end of verification process,
right before we pass it for installation.

Bug: 136257624
Test: atest GtsSecurityHostTestCases
Change-Id: I0b36a281606116c21c960ec64c9b5ffec59f2342