Only allow setting presigned without preprocessed on targetSdk < 30

When targetSdk is >= 30, the system verifies that you use a valid
signature V2+ certificate. Uncompressing ndk/dex files or aligning
the zip file will break a signature V2, so these apks should really
just set preprocessed: true.

Fixes: 185811447
Test: Presubmits
Change-Id: Id89c42bcd5b5daa6eda1716bff4023423298036b