Moved the eccSignRawDigestCb member from the middle of the struct to the end to maintain ABI compatibility

Author: jackctj117

wolfssl/wolfcrypt/pkcs7.h

@@ -354,10 +354,6 @@ struct wc_PKCS7 {
     CallbackRsaSignRawDigest rsaSignRawDigestCb;
 #endif
 
-#if defined(HAVE_PKCS7_ECC_RAW_SIGN_CALLBACK) && defined(HAVE_ECC)
-    CallbackEccSignRawDigest eccSignRawDigestCb;
-#endif
-
     /* used by DecodeEnvelopedData with multiple encrypted contents */
     byte*  cachedEncryptedContent;
     word32 cachedEncryptedContentSz;
@@ -388,6 +384,10 @@ struct wc_PKCS7 {
 
     CallbackAESKeyWrapUnwrap aesKeyWrapUnwrapCb;
 
+#if defined(HAVE_PKCS7_ECC_RAW_SIGN_CALLBACK) && defined(HAVE_ECC)
+    CallbackEccSignRawDigest eccSignRawDigestCb;
+#endif
+
     /* !! NEW DATA MEMBERS MUST BE ADDED AT END !! */
 };