Update sai_stats_support_mask for Moby hwsku to remove PFC pause from port counter (#24122)

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#### Why I did it
This PR is to set `sai_stats_support_mask` to `0x800` for Moby HWSKUs. This is a continuation of sonic-net/sonic-buildimage#23772

##### Work item tracking
* Microsoft ADO **34515971**:
* CSP **CS00012419125**

#### How I did it
Update config.bcm

#### How to verify it
The change is verified by running PFCWD test on a physical testbed.

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#### Description for the changelog
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Set `sai_stats_support_mask` to `0x800` for Moby HWSKUs.

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Author: mssonicbld

device/arista/x86_64-arista_7060x6_16pe_384c_b/Arista-7060X6-16PE-384C-B-O128S2-FANOUT/th5-a7060x6-16pe-384c.config.bcm

@@ -1410,7 +1410,7 @@ bcm_device:
         global:
             ftem_mem_entries: 65536
             #enable port queue drop stats
-            sai_stats_support_mask: 0
+            sai_stats_support_mask: 0x800
             #disable vxlan tunnel stats
             sai_stats_disable_mask: 0x200
             #For PPIU Mode, Set resources for counters in global mode counters like ACL, etc

device/arista/x86_64-arista_7060x6_16pe_384c_b/Arista-7060X6-16PE-384C-B-O128S2-LAB/th5-a7060x6-16pe-384c.config.bcm

@@ -1410,7 +1410,7 @@ bcm_device:
         global:
             ftem_mem_entries: 65536
             #enable port queue drop stats
-            sai_stats_support_mask: 0
+            sai_stats_support_mask: 0x800
             #disable vxlan tunnel stats
             sai_stats_disable_mask: 0x200
             #For PPIU Mode, Set resources for counters in global mode counters like ACL, etc

device/arista/x86_64-arista_7060x6_16pe_384c_b/Arista-7060X6-16PE-384C-B-O128S2/th5-a7060x6-16pe-384c.config.bcm

@@ -1410,7 +1410,7 @@ bcm_device:
         global:
             ftem_mem_entries: 65536
             #enable port queue drop stats
-            sai_stats_support_mask: 0
+            sai_stats_support_mask: 0x800
             #disable vxlan tunnel stats
             sai_stats_disable_mask: 0x200
             #For PPIU Mode, Set resources for counters in global mode counters like ACL, etc