[mmu] add mmu_init_config to HWSKU Arista-7260CX3-Q64 (sonic-net#3334)

yxieca · wangshengjun · commit 03ec08b0820d · 2020-04-28T13:36:19.000+08:00
Signed-off-by: Ying Xie &lt;ying.xie@microsoft.com&gt;
diff --git a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-Q64/th2-a7260cx3-64-64x40G.config.bcm b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-Q64/th2-a7260cx3-64-64x40G.config.bcm
@@ -1012,3 +1012,5 @@ serdes_preemphasis_114=0x61c01
 serdes_preemphasis_115=0x61c01
 serdes_preemphasis_116=0x105004
 serdes_preemphasis_117=0x105004
+
+mmu_init_config="MSFT-TH2-Tier0"
