Bug fix: Support dynamic buffer calculation on ACS-MSN3420 and ACS-MS…

…N4410 (sonic-net#7113)

- Why I did it
Add missed files for dynamic buffer calculation for ACS-MSN3420 and ACS-MSN4410

- How I did it
asic_table.j2: Add mapping from platform to ASIC
Add buffer_dynamic.json.j2 for ACS-MSN4410.

- How to verify it
Check whether the dynamic buffer calculation daemon starts successfully.

Signed-off-by: Stephen Sun <stephens@nvidia.com>

device/mellanox/x86_64-mlnx_msn4410-r0/ACS-MSN4410/buffers_dynamic.json.j2

@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers_dynamic.json.j2

platform/mellanox/asic_table.j2

@@ -14,10 +14,12 @@
         'x86_64-mlnx_msn2700-r0':'MELLANOX-SPECTRUM',
         'x86_64-mlnx_msn2700_simx-r0':'MELLANOX-SPECTRUM',
         'x86_64-mlnx_msn2740-r0':'MELLANOX-SPECTRUM',
+        'x86_64-mlnx_msn3420-r0':'MELLANOX-SPECTRUM-2',
         'x86_64-mlnx_msn3700c-r0':'MELLANOX-SPECTRUM-2',
         'x86_64-mlnx_msn3700-r0':'MELLANOX-SPECTRUM-2',
         'x86_64-mlnx_msn3700_simx-r0':'MELLANOX-SPECTRUM-2',
         'x86_64-mlnx_msn3800-r0':'MELLANOX-SPECTRUM-2',
+        'x86_64-mlnx_msn4410-r0':'MELLANOX-SPECTRUM-3',
         'x86_64-mlnx_msn4700_simx-r0':'MELLANOX-SPECTRUM-3',
         'x86_64-mlnx_msn4700-r0':'MELLANOX-SPECTRUM-3',
         'x86_64-mlnx_msn4600c-r0':'MELLANOX-SPECTRUM-3',