Make obu default again""

Now 1179 is resolved. 

BUG=aomedia:1179

Change-Id: Ia8c4ed36026c17760cc046f8969ff7015b836333

build/cmake/aom_config_defaults.cmake

@@ -164,7 +164,7 @@ set(CONFIG_MONO_VIDEO 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_MV_COMPRESS 1 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_NEW_QUANT 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_NO_FRAME_CONTEXT_SIGNALING 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_OBU 0 CACHE NUMBER "AV1 experiment flag.")
+set(CONFIG_OBU 1 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_OBU_NO_IVF 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_OPT_REF_MV 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_PALETTE_THROUGHPUT 1 CACHE NUMBER "AV1 experiment flag.")

configure

@@ -501,7 +501,7 @@ post_process_cmdline() {
       soft_enable ext_comp_refs
       soft_enable ext_delta_q
       soft_enable parallel_deblocking
-      #soft_enable obu
+      soft_enable obu
       soft_enable simple_bwd_adapt
       soft_enable loopfilter_level
       soft_enable cfl