SurfaceFlinger: Remove display surface IGBP usages

This change is a no-op refactoring that moves the ownership of the
display surface's BufferQueue from SurfaceFlinger into the ConsumerBase
class (the parent of FramebufferSurface and
LegacyVirtualDisplaySurface).

Previously, SurfaceFlinger would explicitly create a BufferQueue and
pass the IGraphicBufferProducer (IGBP) and IGraphicBufferConsumer (IGBC)
to the display surface's constructor.

With this change, the ConsumerBase-derived classes create their own
internal BufferQueue. SurfaceFlinger then retrieves a Surface object
(which wraps the IGBP) from them. This simplifies the code in
SurfaceFlinger and improves encapsulation by making the display surfaces
self-contained.

There is no change in behavior; the underlying producer/consumer
mechanism is identical.

BYPASS_IGBP_IGBC_API_REASON=wb work

Bug: 340933138
Flag: EXEMPT PURE_REFACTOR
Test: atest

Change-Id: I0edd5dce261e0517eeae3a85f4c9ccfad224e197