Make dex2oat art_cc_binary instead of just cc_binary.

This to get customized properties like CUSTOM_TARGET_LINKER.

Change-Id: Ifa25c52faa40fa6da40b614f664ab24ac1b7356a
diff --git a/dex2oat/Android.bp b/dex2oat/Android.bp
index be7f9fa..43df6ae 100644
--- a/dex2oat/Android.bp
+++ b/dex2oat/Android.bp
@@ -41,7 +41,7 @@
     ],
 }
 
-cc_binary {
+art_cc_binary {
     name: "dex2oat",
     defaults: [
         "dex2oat-defaults",
@@ -53,7 +53,7 @@
     ],
 }
 
-cc_binary {
+art_cc_binary {
     name: "dex2oatd",
     defaults: [
         "art_debug_defaults",
@@ -66,7 +66,7 @@
     ],
 }
 
-cc_binary {
+art_cc_binary {
     name: "dex2oats",
     device_supported: false,
     static_executable: true,
@@ -92,7 +92,7 @@
     ] + art_static_dependencies,
 }
 
-cc_binary {
+art_cc_binary {
     name: "dex2oatds",
     device_supported: false,
     static_executable: true,