Enable chachcapoly cipher for SSL tickets

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/library/ssl_ticket.c b/library/ssl_ticket.c
index f48831b..ed9c7a5 100644
--- a/library/ssl_ticket.c
+++ b/library/ssl_ticket.c
@@ -236,7 +236,8 @@
     cipher_info = mbedtls_cipher_info_from_type( cipher );
 
     if( mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_GCM &&
-        mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_CCM )
+        mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_CCM &&
+        mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_CHACHAPOLY )
     {
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }