Only consider EXTRA_INSTALL_ZIPS relevant by their primary file

Sometimes android_app_bundles exist in the tree but are not added
to PRODUCT_PACKAGES, in that case, they shouldn't be added to
file_list.txt.

We can tell if they're in PRODUCT_PACKAGES by if their primary file
is present in the list of files to install.

Bug: 337869220
Test: m out/target/product/emu64x/obj/PACKAGING/system_intermediates/file_list.txt and checking it for the extra NetworkStackGoogle apks, with a local NetworkStackGoogle android_app_set added into the tree
Change-Id: I22bcd9e972e1c9d5c7ddca788b9c6edc72f0a9dd