Fix regressions in D2D1 result code mapping.

Author: jkoritzinsky

Source/SharpDX.Direct2D1/Mapping-direct2d1.xml

@@ -65,7 +65,7 @@
     <context>sharpdx-direct2d1-ext</context>
     <context>dcommon</context>
     <context>d2d1</context>
-    <context>d2derr</context>
+    <context>D2DErr</context>
     <context>d2d1_1</context>
     <context>d2d1_2</context>
     <context>d2d1_3</context>