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/video_core/CMakeLists.txt

@@ -10,6 +10,7 @@ add_library(video_core STATIC
     pica.h
     pica_state.h
     pica_types.h
+    precompiled_headers.h
     primitive_assembly.cpp
     primitive_assembly.h
     rasterizer_interface.h
@@ -163,3 +164,7 @@ set_target_properties(video_core PROPERTIES INTERPROCEDURAL_OPTIMIZATION ${ENABL
 if (ARCHITECTURE_x86_64)
     target_link_libraries(video_core PUBLIC xbyak)
 endif()
+
+if (CITRA_USE_PRECOMPILED_HEADERS)
+    target_precompile_headers(video_core PRIVATE precompiled_headers.h)
+endif()

src/video_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"