topology1/mt8195: Add Graphviz output markers

Add the .dot file header/footer macros.  These are benign if unused,
and it seems like most other devices have them defined.

Signed-off-by: Andy Ross <andyross@google.com>

tools/topology/topology1/sof-mt8195-mt6359-rt1019-rt5682.m4

@@ -20,6 +20,8 @@ include(`sof/tokens.m4')
 # Include DSP configuration
 include(`platform/mediatek/mt8195.m4')
 
+DEBUG_START
+
 #
 # Define the demux configure
 #
@@ -187,3 +189,5 @@ DAI_CONFIG(AFE, 2, 0, AFE_SOF_UL4,
 
 DAI_CONFIG(AFE, 3, 0, AFE_SOF_UL5,
 	AFE_CONFIG(AFE_CONFIG_DATA(AFE, 3, 48000, 2, s16le)))
+
+DEBUG_END