fix various issues

- typo error
- replace `ssl->hanshake` with handshake

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 364e886..9940a0e 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1742,8 +1742,7 @@
         p += extension_data_len;
     }
 
-    MBEDTLS_SSL_PRINT_EXTS(
-        3, hs_msg_type, ssl->handshake->received_extensions );
+    MBEDTLS_SSL_PRINT_EXTS( 3, hs_msg_type, handshake->received_extensions );
 
 cleanup:
 
@@ -2036,7 +2035,7 @@
     }
 
     MBEDTLS_SSL_PRINT_EXTS( 3, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
-                            ssl->handshake->received_extensions );
+                            handshake->received_extensions );
 
     /* Check that we consumed all the message. */
     if( p != end )
@@ -2225,7 +2224,7 @@
     }
 
     MBEDTLS_SSL_PRINT_EXTS( 3, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
-                            ssl->handshake->received_extensions );
+                            handshake->received_extensions );
 
     /* Check that we consumed all the message. */
     if( p != end )
@@ -2517,7 +2516,7 @@
     }
 
     MBEDTLS_SSL_PRINT_EXTS( 3, MBEDTLS_SSL_HS_NEW_SESSION_TICKET,
-                            ssl->handshake->received_extensions );
+                            handshake->received_extensions );
 
     return( 0 );
 }