aactab: Move extern keyword to the front of array declarations

libavcodec/aactab.h:49:1: warning: ‘extern’ is not at beginning of declaration [-Wold-style-declaration]

libavcodec/aactab.h

@@ -46,8 +46,8 @@
  */
 DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_long_1024)[1024];
 DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_short_128)[128];
-const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_512)[1920];
-const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_480)[1800];
+DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_512)[1920];
+DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_480)[1800];
 // @}
 
 /* @name number of scalefactor window bands for long and short transform windows respectively