Update to latest upstream version

- Audio core mechanics have been changed
- Framerate limiter now allows for custom target speed
- Other internal changes

src/audio_core/libretro_sink.cpp

@@ -5,7 +5,6 @@
 #include <list>
 #include <numeric>
 #include <libretro.h>
-#include "audio_core/audio_core.h"
 #include "audio_core/libretro_sink.h"
 #include "common/assert.h"
 #include "common/logging/log.h"

src/citra_libretro/citra_libretro.cpp

@@ -67,6 +67,7 @@ void LibRetro::OnConfigureEnvironment() {
          "Right analog function; C-Stick and Touchscreen Pointer|Touchscreen Pointer|C-Stick"},
         {"citra_deadzone", "Emulated pointer deadzone (%); 15|20|25|30|35|0|5|10"},
         {"citra_limit_framerate", "Enable frame limiter; enabled|disabled"},
+        {"citra_limit_framerate_target", "Frame limiter target (% of full speed); 100|110|120|130|140|150|200|250|300|350|400|450|500|50|80|90"},
         {"citra_audio_stretching", "Enable audio stretching; enabled|disabled"},
         {"citra_use_virtual_sd", "Enable virtual SD card; enabled|disabled"},
         {"citra_use_libretro_save_path", "Savegame location; Citra Default|LibRetro Default"},
@@ -137,8 +138,10 @@ void UpdateSettings(bool init) {
         LibRetro::FetchVariable("citra_use_shader_jit", "enabled") == "enabled";
     Settings::values.enable_audio_stretching =
         LibRetro::FetchVariable("citra_audio_stretching", "enabled") == "enabled";
-    Settings::values.toggle_framelimit =
+    Settings::values.use_frame_limit =
         LibRetro::FetchVariable("citra_limit_framerate", "enabled") == "enabled";
+    auto framerate_target = LibRetro::FetchVariable("citra_limit_framerate_target", "100");
+    Settings::values.frame_limit = static_cast<u16>(std::stoi(framerate_target));
     Settings::values.use_virtual_sd =
         LibRetro::FetchVariable("citra_use_virtual_sd", "enabled") == "enabled";
     Settings::values.is_new_3ds =