Rename target MicroroidDeviceTestHelper to MicrodroidDeviceTestHelper

Fix typo in target name.

Test: atest MicrodroidBenchmarkApp
Change-Id: I4def5bf0b6db3df8f1b6a9187b131c52d88b6246
diff --git a/tests/helper/Android.bp b/tests/helper/Android.bp
index 200eb42..f8dcef7 100644
--- a/tests/helper/Android.bp
+++ b/tests/helper/Android.bp
@@ -9,7 +9,7 @@
 }
 
 java_library_static {
-    name: "MicroroidDeviceTestHelper",
+    name: "MicrodroidDeviceTestHelper",
     srcs: ["src/java/com/android/microdroid/**/*.java"],
     static_libs: [
         "androidx.test.runner",