!11633 [MS][LITE]fix pet classification android demo title

From: @sishuikang
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhanghaibo5

model_zoo/official/lite/pet_classification/app/src/main/res/layout/activity_main.xml

@@ -19,7 +19,7 @@
             android:drawablePadding="5dp"
             android:gravity="center_vertical"
             android:maxLines="1"
-            android:text="MS Pet Classification"
+            android:text="Pet Classification"
             android:textColor="#ffffff"
             android:textSize="20sp" />
     </androidx.appcompat.widget.Toolbar>