Port yuzu-emu/yuzu#9300: "CMake: Use precompiled headers to improve compile times" (#6213)

Co-authored-by: Ameer J <52414509+ameerj@users.noreply.github.com>

src/audio_core/CMakeLists.txt

@@ -23,6 +23,7 @@ add_library(audio_core STATIC
     interpolate.cpp
     interpolate.h
     null_sink.h
+    precompiled_headers.h
     sink.h
     sink_details.cpp
     sink_details.h
@@ -89,3 +90,7 @@ if(ENABLE_CUBEB)
     target_link_libraries(audio_core PRIVATE cubeb)
     target_compile_definitions(audio_core PUBLIC HAVE_CUBEB)
 endif()
+
+if (CITRA_USE_PRECOMPILED_HEADERS)
+    target_precompile_headers(audio_core PRIVATE precompiled_headers.h)
+endif()

src/audio_core/precompiled_headers.h

@@ -0,0 +1,7 @@
+// Copyright 2022 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_precompiled_headers.h"