VtsHalMediaC2V1_0TargetVideoDecTest: Migrate away from IGBC

We're no longer supporting client use of IGBP/IGBC. This CL replaces
usage in FrameCaptureLayer.h/cpp with BufferItemConsumer.

BYPASS_IGBP_IGBC_API_REASON=warren buffers

Bug: 393638833
Flag: EXEMPT test
Test: atest VtsHalMediaC2V1_0TargetVideoDecTest
Change-Id: I41972a07b730bf11db3af71dedf0dcee009202fb