Move all the includes for androidfw under
a common base path for that library instead
of frameworks/base/includes.
Also fixes -Werror issues that resulted in
no longer being -isystem.
Test: builds
Change-Id: Ic4312eb61b197af114dded5691d5ae1ec82923f7
(1) Update both static and shared lib to export libhwui headers
(2) Work around problem in current make system where a static
libraries dependencies are not transitively included by moving
those dependencies into a file that can be included by targets
using libhwui_static.
(3) Do not expose protobuf headers to clients outside of HWUI
Change-Id: I08470c02a83ae64116081eff0c2050878990c6ed
