[util] Enable cachedDynamicBuffers for Battlestations Midway

Helps performance dips that can happen in some areas

src/util/config/config.cpp

@@ -819,6 +819,10 @@ namespace dxvk {
     { R"(\\AoK HD\.exe$)", {{
       { "d3d9.maxFrameLatency",             "1" },
     }} },
+    /* Battlestations Midway                   */
+    { R"(\\Battlestationsmidway\.exe$)", {{
+      { "d3d9.cachedDynamicBuffers",     "True" },
+    }} },
 
     /**********************************************/
     /* D3D12 GAMES (vkd3d-proton with dxvk dxgi)  */