Support hwsku 100G on as9726-32d with new yml

device/accton/x86_64-accton_as9726_32d-r0/Accton-AS9726-32D-100G/td4-as9726-32x100G.config.yml

@@ -24,13 +24,19 @@
 bcm_device:
   0:
     global:
-      pktio_mode: 0
-      skip_protocol_default_entries: 1
-      uft_mode: 3
-      l3_alpm_template: 1
-      vlan_default_port: 3
-      max_vp_lags: 894
-      vlan_flooding_l2mc_num_reserved: 0
+        bcm_tunnel_term_compatible_mode: 1
+        # Multicast group allocated by brcm-sai, setting "vlan_flooding_l2mc_num_reserved=0" 
+        vlan_flooding_l2mc_num_reserved: 0
+        shared_block_mask_section: uc_bc
+        sai_tunnel_support: 1
+        l3_alpm_template: 1
+        l3_alpm2_bnk_threshold: 100
+        uft_mode: 1
+        l3_enable: 1
+        l2_hitbit_enable: 1
+        pktio_mode: 1
+        skip_protocol_default_entries: 1
+        ifa_enable: 1
 ...
 ---
 bcm_device: