Organize header dependencies

Header files that are exported are moved to a specific place for
exporting.

Test: make cts -j123 && cts-tradefed run cts-dev -m \
CtsMediaTestCases --compatibility:module-arg \
CtsMediaTestCases:include-annotation:\
android.platform.test.annotations.RequiresDevice
Bug: 63821829

Change-Id: Ia578e3c0dd1ff157335b3a49af896acb922586e8
88 files changed