Fixing build and removing old binary libav submodule.

src/xenia/apu/premake5.lua

@@ -14,8 +14,8 @@ project("xenia-apu")
   defines({
   })
   includedirs({
-    project_root.."/third_party/libav/include/",
     project_root.."/build_tools/third_party/gflags/src",
+    project_root.."/third_party/libav/",
   })
   local_platform_files()
 

src/xenia/apu/xma_context.cc

@@ -20,9 +20,9 @@
 #include "xenia/profiling.h"
 
 extern "C" {
-#include "libavcodec/avcodec.h"
-#include "libavcodec/xma2dec.h"
-#include "libavutil/channel_layout.h"
+#include "third_party/libav/libavcodec/avcodec.h"
+#include "third_party/libav/libavcodec/xma2dec.h"
+#include "third_party/libav/libavutil/channel_layout.h"
 
 extern AVCodec ff_xma2_decoder;
 }  // extern "C"

src/xenia/apu/xma_decoder.cc

@@ -22,7 +22,7 @@
 #include "xenia/profiling.h"
 
 extern "C" {
-#include "libavutil/log.h"
+#include "third_party/libav/libavutil/log.h"
 }  // extern "C"
 
 // As with normal Microsoft, there are like twelve different ways to access