Update log message when virtual_camera starts

Change-Id: I417930f8407702c95da13f1fe271a8d9ea38179c
diff --git a/services/camera/virtualcamera/main.cc b/services/camera/virtualcamera/main.cc
index 43b0219..3db9d9c 100644
--- a/services/camera/virtualcamera/main.cc
+++ b/services/camera/virtualcamera/main.cc
@@ -38,7 +38,7 @@
 }  // namespace
 
 int main() {
-  ALOGI("CameraProvider: virtual webcam service is starting.");
+  ALOGI("virtual_camera service is starting.");
 
   ABinderProcess_setThreadPoolMaxThreadCount(HWBINDER_THREAD_COUNT);