Fix DXGI AdapterDescription3::Flags to use DXGI_ADAPTER_FLAG3

Author: xoofx

Source/SharpDX.DXGI/Mapping.xml

@@ -135,7 +135,7 @@
 
     <map field="DXGI_ADAPTER_DESC[123]?::AdapterLuid" name="Luid" />
     <map field="DXGI_ADAPTER_DESC[123]?::SubSysId" name="SubsystemId" />
-    <map field="DXGI_ADAPTER_DESC[123]::Flags" type="DXGI_ADAPTER_FLAG" />
+    <map field="DXGI_ADAPTER_DESC[12]::Flags" type="DXGI_ADAPTER_FLAG" />
 
     <map field="DXGI_GAMMA_CONTROL_CAPABILITIES::MaxConvertedValue" name="MaximumConvertedValue" />
     <map field="DXGI_GAMMA_CONTROL_CAPABILITIES::MinConvertedValue" name="MinimumConvertedValue" />