various: sort some standard headers

since i was going to fix the include order of stdatomic, might as well
sort the surrouding includes in accordance with the project's coding
style.

some headers can sometime require specific include order. standard
library headers usually don't. but mpv might "hack into" the standard
headers (e.g pthreads) so that complicates things a bit more.

hopefully nothing breaks. if it does, the style guide is to blame.

audio/out/ao_coreaudio_exclusive.c

@@ -34,6 +34,8 @@
  * when you are wanting to do good buffering of audio).
  */
 
+#include <stdatomic.h>
+
 #include <CoreAudio/HostTime.h>
 
 #include <libavutil/intreadwrite.h>
@@ -43,7 +45,6 @@
 #include "internal.h"
 #include "audio/format.h"
 #include "osdep/timer.h"
-#include <stdatomic.h>
 #include "options/m_option.h"
 #include "common/msg.h"
 #include "audio/out/ao_coreaudio_chmap.h"

audio/out/ao_jack.c

@@ -22,6 +22,7 @@
  * with mpv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <stdatomic.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -33,7 +34,6 @@
 #include "ao.h"
 #include "internal.h"
 #include "audio/format.h"
-#include <stdatomic.h>
 #include "osdep/timer.h"
 #include "options/m_config.h"
 #include "options/m_option.h"

audio/out/ao_wasapi.h

@@ -20,8 +20,10 @@
 #ifndef MP_AO_WASAPI_H_
 #define MP_AO_WASAPI_H_
 
+#include <stdatomic.h>
 #include <stdlib.h>
 #include <stdbool.h>
+
 #include <windows.h>
 #include <mmdeviceapi.h>
 #include <audioclient.h>
@@ -29,7 +31,6 @@
 #include <endpointvolume.h>
 
 #include "common/msg.h"
-#include <stdatomic.h>
 #include "osdep/windows_utils.h"
 #include "internal.h"
 #include "ao.h"

audio/out/internal.h

@@ -18,10 +18,10 @@
 #ifndef MP_AO_INTERNAL_H_
 #define MP_AO_INTERNAL_H_
 
-#include <stdbool.h>
 #include <pthread.h>
-
 #include <stdatomic.h>
+#include <stdbool.h>
+
 #include "audio/out/ao.h"
 
 /* global data used by ao.c and ao drivers */