Add cmake dependency for ext_comp_refs
Add cmake dependency for ext_comp_refs

Change-Id: I8080a860c32d465810a960bf25f4299c40122937

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