Fix nobootanimation toggle

The sf.debug.nobootanimation was apparently broken in a recent
refactoring. Flipping the boolean in the utils fixes the issue.

Left some additional logging behind.

Test: marlin-eng boots
Test: my test can prevent the boot animation
Test: shell stop start shows boot animation
Change-Id: I815708a2f16a3a8688cf1a53695e5a8d43194575

cmds/bootanimation/BootAnimationUtil.cpp

@@ -29,7 +29,7 @@ bool bootAnimationDisabled() {
     char value[PROPERTY_VALUE_MAX];
     property_get("debug.sf.nobootanimation", value, "0");
     if (atoi(value) > 0) {
-      return false;
+        return true;
     }
 
     property_get("ro.boot.quiescent", value, "0");

cmds/bootanimation/bootanimation_main.cpp

@@ -157,8 +157,10 @@ int main()
 
         // create the boot animation object
         sp<BootAnimation> boot = new BootAnimation(new AudioAnimationCallbacks());
+        ALOGV("Boot animation set up. Joining pool.");
 
         IPCThreadState::self()->joinThreadPool();
     }
+    ALOGV("Boot animation exit");
     return 0;
 }