[arista]: Update arista drivers submodule (#3618)

zzhiyuan · lguohan · commit 6ecec007e35d · 2019-10-16T18:38:13.000-07:00
Fixed variable name causing problems for sonic-platform-commons for arista.
diff --git a/platform/barefoot/sonic-platform-modules-arista b/platform/barefoot/sonic-platform-modules-arista
@@ -1 +1 @@
-Subproject commit 73dd2e0fe144e2bb6778d39d3e051c597bb1c9d8
+Subproject commit 10750325b6cfc7a1dc1a8b0734008bde1bb3ac06
diff --git a/platform/broadcom/sonic-platform-modules-arista b/platform/broadcom/sonic-platform-modules-arista
@@ -1 +1 @@
-Subproject commit 73dd2e0fe144e2bb6778d39d3e051c597bb1c9d8
+Subproject commit 10750325b6cfc7a1dc1a8b0734008bde1bb3ac06
