Add missing dependency to CMake test object libraries
Add missing dependency to CMake test object libraries

The test libs omitted the dependency on aom.

Change-Id: I47fe769252151cf0bf81f245452e22512963c9fa

GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom