Android: don't (re-)strip DSOs

finagolfin/swift-android-sdk#67

Author: lhoward

Examples/counter/android/app/build.gradle

@@ -55,6 +55,12 @@ android {
             jniLibs.srcDirs = ["libs"]
         }
     }
+
+    packagingOptions {
+        doNotStrip "*/arm64-v8a/*.so"
+        doNotStrip "*/armeabi-v7a/*.so"
+        doNotStrip "*/x86_64/*.so"
+    }
 }
 
 flutter {