crypto/secp256k1: update to github.com/bitcoin-core/secp256k1 @ 9d560f9 (#3544)

- Use defined constants instead of hard-coding their integer value.
- Allocate secp256k1 structs on the C stack instead of converting []byte
- Remove dead code

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/secp256k1/libsecp256k1/src/hash.h b/crypto/secp256k1/libsecp256k1/src/hash.h
index 0ff01e63f..fca98cab9 100644
--- a/crypto/secp256k1/libsecp256k1/src/hash.h
+++ b/crypto/secp256k1/libsecp256k1/src/hash.h
@@ -11,7 +11,7 @@
 #include <stdint.h>
 
 typedef struct {
-    uint32_t s[32];
+    uint32_t s[8];
     uint32_t buf[16]; /* In big endian */
     size_t bytes;
 } secp256k1_sha256_t;