So that we don't need to specify it in individual mainline modules
products, which becomes more important after the internal ones only
inherit from the common aosp product as opposed to the arch-specific
ones.
Bug: 249685973
Test: Diff'd the soong.variables files for the module_* products and saw no differences
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:211c5c2810e50a1c5d3bca2f1f7942b624fe3abe)
Merged-In: If1733eb193cd3748fb3562d09bfd41651e2480f9
Change-Id: If1733eb193cd3748fb3562d09bfd41651e2480f9
64bit only systems won't load modules with mixed 32/64 binaries. We need
a 64bit only product to build with.
Bug: 205990590
Test: lunch module_x86_64only && m
Test: vendor/google/build/build_mainline_modules.sh
Change-Id: I906f6cd10882986c8182ed16916e07c0f0d8b32e
Merged-In: I906f6cd10882986c8182ed16916e07c0f0d8b32e