rrl: fixup build on non-x86_64

Missing include caused issues with unknown `KR_EXPORT`, e.g.:
https://gitlab.nic.cz/knot/knot-resolver/-/jobs/1142787#L2801

diff --git a/lib/kru-avx2.c b/lib/kru-avx2.c
index e6875f75f852dc0bfae3e38ff877afa3b6077250..a850c5c83f43708cdbdaae2d9335f91abe4ca7cc 100644 (file)
--- a/lib/kru-avx2.c
+++ b/lib/kru-avx2.c
@@ -63,6 +63,7 @@ static void detect_CPU_avx2(void)
 #else
 
 #include "./kru.h"
+#include "lib/defines.h"
 KR_EXPORT
 const struct kru_api KRU_AVX2 = {NULL};