Convert libart-gtest to Android.bp

Change-Id: Ibea17e3e002e6ad3f82158cd3c69d087fa9b15c9
diff --git a/compiler/Android.bp b/compiler/Android.bp
index 595a824..0581418 100644
--- a/compiler/Android.bp
+++ b/compiler/Android.bp
@@ -279,3 +279,12 @@
     },
     shared_libs: ["libartd"],
 }
+
+art_cc_library {
+    name: "libart-compiler-gtest",
+    defaults: ["libart-gtest-defaults"],
+    srcs: ["common_compiler_test.cc"],
+    shared_libs: [
+        "libartd-compiler",
+    ],
+}