Address PR cpomments reviews
1) move the change into Features from Changes, in the changLog
2) Change the feature alternative configuration MBEDTLS_ECDH_ALT
definition to function alternative defintions
MBEDTLS_ECDH_COMPUTE_SHARED_ALT and MBEDTLS_ECDH_GEN_PUBLIC_ALT
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index a29312a..a151f77 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -238,7 +238,6 @@
//#define MBEDTLS_BLOWFISH_ALT
//#define MBEDTLS_CAMELLIA_ALT
//#define MBEDTLS_DES_ALT
-//#define MBEDTLS_ECDH_ALT
//#define MBEDTLS_XTEA_ALT
//#define MBEDTLS_MD2_ALT
//#define MBEDTLS_MD4_ALT
@@ -295,6 +294,8 @@
//#define MBEDTLS_AES_SETKEY_DEC_ALT
//#define MBEDTLS_AES_ENCRYPT_ALT
//#define MBEDTLS_AES_DECRYPT_ALT
+//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT
+//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT
/**
* \def MBEDTLS_ECP_INTERNAL_ALT