Enable libtinyxml2 on Windows

It is necessary to enable libtinyxml2 on Windows because there are some tools included in the SDK for Windows (e.g., dexdump) which are depending on libartbase (see https://cs.android.com/android/platform/superproject/+/master:art/dexdump/Android.bp;l=43;drc=d539f8674a7fc796f7e77b6ca72315d2cda15d13 and https://cs.android.com/android/platform/superproject/+/master:art/dexdump/Android.bp;l=64-67;drc=d539f8674a7fc796f7e77b6ca72315d2cda15d13).

Test: build
Bug: 175048705
Change-Id: I46fe722c28f6b92d69b8d230ca0338204a5862cd
(cherry picked from commit 3255482a)
Merged-In: I46fe722c28f6b92d69b8d230ca0338204a5862cd

Android.bp

@@ -63,6 +63,12 @@ cc_library {
                 "-DANDROID_NDK",
             ],
         },
+        windows: {
+            enabled: true,
+            shared: {
+                enabled: false,
+            }
+        },
     },
 
     export_include_dirs: ["."],