Revert "fix: remove dead code - ethhash_keccak256_32 (ipsilon#1345)"

This reverts commit 40a3d29.

Author: somnergy

lib/evmone_precompiles/keccak.c

@@ -389,3 +389,10 @@ union ethash_hash256 ethash_keccak256(const uint8_t* data, size_t size)
     keccak(hash.word64s, 256, data, size);
     return hash;
 }
+
+union ethash_hash256 ethash_keccak256_32(const uint8_t data[32])
+{
+    union ethash_hash256 hash;
+    keccak(hash.word64s, 256, data, 32);
+    return hash;
+}

lib/evmone_precompiles/keccak.h

@@ -17,6 +17,7 @@ extern "C" {
 #endif
 
 union ethash_hash256 ethash_keccak256(const uint8_t* data, size_t size) noexcept;
+union ethash_hash256 ethash_keccak256_32(const uint8_t data[32]) noexcept;
 
 #ifdef __cplusplus
 }

lib/evmone_precompiles/keccak.hpp

@@ -13,4 +13,11 @@ inline hash256 keccak256(const uint8_t* data, size_t size) noexcept
     return ethash_keccak256(data, size);
 }
 
+inline hash256 keccak256(const hash256& input) noexcept
+{
+    return ethash_keccak256_32(input.bytes);
+}
+
+static constexpr auto keccak256_32 = ethash_keccak256_32;
+
 }  // namespace ethash