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: I326e97df6630dee4acc6582ce6cef2dec8289155
5 files changed