llama-gguf-hash: ignore maybe-uninitialized gcc-8 error

Author: mofosyne

examples/gguf-hash/deps/sha256/sha256.c

@@ -94,7 +94,10 @@ static const uint32_t K[64] = {
 static void
 sha256_transform(uint32_t *state, const uint32_t *data)
 {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
   uint32_t W[16];
+#pragma GCC diagnostic pop
   unsigned j;
   #ifdef _SHA256_UNROLL2
   uint32_t a,b,c,d,e,f,g,h;