crypto: blake2s - adjust include guard naming

Use the full path in the include guards for the BLAKE2s headers to avoid
ambiguity and to match the convention for most files in include/crypto/.

Signed-off-by: Eric Biggers <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
diff --git a/include/crypto/blake2s.h b/include/crypto/blake2s.h
index f1c8330..3f06183 100644
--- a/include/crypto/blake2s.h
+++ b/include/crypto/blake2s.h
@@ -3,8 +3,8 @@
  * Copyright (C) 2015-2019 Jason A. Donenfeld <[email protected]>. All Rights Reserved.
  */
 
-#ifndef BLAKE2S_H
-#define BLAKE2S_H
+#ifndef _CRYPTO_BLAKE2S_H
+#define _CRYPTO_BLAKE2S_H
 
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -105,4 +105,4 @@ static inline void blake2s(u8 *out, const u8 *in, const u8 *key,
 void blake2s256_hmac(u8 *out, const u8 *in, const u8 *key, const size_t inlen,
 		     const size_t keylen);
 
-#endif /* BLAKE2S_H */
+#endif /* _CRYPTO_BLAKE2S_H */