attributes: move av_restrict fallback from internal to attributes

This should fix --enable-hardcoded-tables
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavutil/attributes.h

@@ -72,6 +72,10 @@
 #endif
 #endif
 
+#ifndef av_restrict
+#define av_restrict restrict
+#endif
+
 #ifndef av_const
 #if AV_GCC_VERSION_AT_LEAST(2,6)
 #    define av_const __attribute__((const))

libavutil/internal.h

@@ -53,10 +53,6 @@ struct AVDictionary {
 #endif
 #endif
 
-#ifndef av_restrict
-#define av_restrict restrict
-#endif
-
 #ifndef INT16_MIN
 #define INT16_MIN       (-0x7fff - 1)
 #endif