[dma/hw] Tie frame sync signals to 0

Change-Id: If5bb02c86d69e04e4dfaa332ebfef4f5f1bd533a

hw/top_matcha/ip/dma/rtl/dma.sv

diff --git a/hw/top_matcha/ip/dma/rtl/dma.sv b/hw/top_matcha/ip/dma/rtl/dma.sv
index 568fd2f..be392f0 100644
--- a/hw/top_matcha/ip/dma/rtl/dma.sv
+++ b/hw/top_matcha/ip/dma/rtl/dma.sv
@@ -218,8 +218,8 @@
     // Other signals
     .io_irq_readerDone     (  intr_reader_done_o           ),
     .io_irq_writerDone     (  intr_writer_done_o           ),
-    .io_sync_readerSync    (                               ),
-    .io_sync_writerSync    (                               )
+    .io_sync_readerSync    (  1'b0                         ),
+    .io_sync_writerSync    (  1'b0                         )
   );
 
   // Explicitly throw controller error for comportability spec