Remove direct libgui reference from omx server side

- Make mediacodec service/libstagefright_omx not dependent
on libgui. Server should only reference bqhelper (which
currently still have a dependency on libgui, but could be
removed later as it's only used internally).

- Make libmedia_omx not dependent on libgui by moving the
IOMX wrapper code into a separately that's only used by
the platform.

- Move ConsumerListener references in GraphicBufferSource
to implementation only, so that other libs including
GraphicBufferSource doesn't need to link libgui.

- Remove bqhelper references from some client side libs.

- Remove IOMX ipc related code, as IOMX interface is no
longer used for ipc. It's only used as an interface on
client side.

bug: 129272021
test: builds;
atest CtsMediaTestCases -- --module-arg CtsMediaTestCases:size:small

Change-Id: I49d80bf72eba325ee80b223d4a5ba7b0c1ab4d35