Sync CMake build with configure build.

Add CONFIG_INTER_STATS_ONLY, currently defaults to 0.

Change-Id: I495ceaa698e34a5ab5b5456355013fca684d4834

build/cmake/aom_config_defaults.cmake

@@ -173,3 +173,4 @@ set(CONFIG_DCT_ONLY 0 CACHE NUMBER "Internal flag.")
 set(CONFIG_DAALA_DCT4 0 CACHE NUMBER "Internal flag.")
 set(CONFIG_GF_GROUPS 0 CACHE NUMBER "Internal flag.")
 set(CONFIG_MRC_TX 0 CACHE NUMBER "Internal flag.")
+set(CONFIG_INTER_STATS_ONLY 0 CACHE NUMBER "Internal flag.")