Add build options to skip some libraries

libbase is already split off into separate component libraries.  The
tatl and tael boards don't actually need some of them (like dbus, which ends up
pulling in the entire dbus daemon through ebuild dependencies).  Add options to
optionally turn off these libraries.  The default is to still build and install
everything so this should not cause a functional change for existing boards.

BUG=none
TEST=build and deploy an image for cave and minnie and see that it works
properly.

Change-Id: If9f2c3eb1dfab24765859886f1f74db34f4f0c87
Signed-off-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/451860
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed