avutil: remove timer.h include from internal.h

Added libavutil/timer.h include to all files with {START,STOP}_TIMER.

libavutil/aes.c

@@ -23,6 +23,7 @@
 #include "common.h"
 #include "aes.h"
 #include "intreadwrite.h"
+#include "timer.h"
 
 typedef union {
     uint64_t u64[2];

libavutil/eval.c

@@ -33,6 +33,7 @@
 #include "log.h"
 #include "mathematics.h"
 #include "avstring.h"
+#include "timer.h"
 
 typedef struct Parser {
     const AVClass *class;

libavutil/internal.h

@@ -36,7 +36,6 @@
 #include <assert.h>
 #include "config.h"
 #include "attributes.h"
-#include "timer.h"
 #include "dict.h"
 
 #if ARCH_X86