Build dexdump on mac.

Bug: 22322814
Test: make -j30 PRODUCT-sdk-sdk showcommands dist sdk_repo
Change-Id: Ibc8a0ee203ca97349debe0d2ff8ddfeb765fdfd7
diff --git a/dexdump/Android.bp b/dexdump/Android.bp
index 10bdf51..c1890da 100644
--- a/dexdump/Android.bp
+++ b/dexdump/Android.bp
@@ -38,21 +38,24 @@
                 "libz",
                 "libziparchive",
             ],
-	},
-	not_windows: {
+        },
+        not_windows: {
             shared_libs: [
                 "libdexfile",
                 "libartbase",
                 "libbase",
             ],
-	},
-	android: {
+        },
+        android: {
             shared_libs: [
                 "libdexfile",
                 "libartbase",
                 "libbase",
             ],
-	},
+        },
+        darwin: {
+            enabled: true,
+        },
     }
 }