Revert "Make AndroidRuntime only start the debugger for zygote forked apps."

This reverts commit daf17d415c.

Reason for revert: Topic broke go/art-build. Reverting as ART Sheriff. 

Change-Id: I913dcb82532d448116b0c60d98a91b9b7442d5c9

core/jni/AndroidRuntime.cpp

@@ -761,17 +761,18 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
 
     /*
      * Enable debugging only for apps forked from zygote.
+     * Set suspend=y to pause during VM init and use android ADB transport.
      */
     if (zygote) {
-      // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
-      // implemented. When this is not set the runtime defaults to not allowing JDWP.
       addOption("-XjdwpOptions:suspend=n,server=y");
-      parseRuntimeOption("dalvik.vm.jdwp-provider",
-                         jdwpProviderBuf,
-                         "-XjdwpProvider:",
-                         "default");
     }
 
+    // Set the JDWP provider. By default let the runtime choose.
+    parseRuntimeOption("dalvik.vm.jdwp-provider",
+                       jdwpProviderBuf,
+                       "-XjdwpProvider:",
+                       "default");
+
     parseRuntimeOption("dalvik.vm.lockprof.threshold",
                        lockProfThresholdBuf,
                        "-Xlockprofthreshold:");