Don't install all host modules by default.

Instead we should explicitly set up the dependency, if the module will
be used in the build process; Use LOCAL_MODULE_TAGS with eng, debug or
tests if the module is for testing; or add to PRODUCT_PACKAGES if it's
required by a product.

Change-Id: Ic26319c26c1166bc1062dfbcfb4e006af185249a
4 files changed