libavfilter: Fix implicit declarations of av_cpu_max_align

Signed-off-by: Martin Storsjö <martin@martin.st>

libavfilter/af_afftfilt.c

@@ -22,6 +22,7 @@
 #include "libavutil/avstring.h"
 #include "libavfilter/internal.h"
 #include "libavutil/common.h"
+#include "libavutil/cpu.h"
 #include "libavutil/opt.h"
 #include "libavutil/eval.h"
 #include "libavutil/tx.h"

libavfilter/avf_showspectrum.c

@@ -33,6 +33,7 @@
 #include "libavutil/avassert.h"
 #include "libavutil/avstring.h"
 #include "libavutil/channel_layout.h"
+#include "libavutil/cpu.h"
 #include "libavutil/opt.h"
 #include "libavutil/parseutils.h"
 #include "libavutil/xga_font_data.h"

libavfilter/vaf_spectrumsynth.c

@@ -27,6 +27,7 @@
 #include "libavutil/tx.h"
 #include "libavutil/avassert.h"
 #include "libavutil/channel_layout.h"
+#include "libavutil/cpu.h"
 #include "libavutil/ffmath.h"
 #include "libavutil/opt.h"
 #include "libavutil/parseutils.h"