sync artifactId with buck artifact

- onos-drivers-default

Change-Id: I06be6891960eb809b78c35ae33cd962154d9295f
diff --git a/drivers/flowspec/pom.xml b/drivers/flowspec/pom.xml
index ebf7f37..74ea82b 100644
--- a/drivers/flowspec/pom.xml
+++ b/drivers/flowspec/pom.xml
@@ -50,7 +50,7 @@
 
         <dependency>
             <groupId>org.onosproject</groupId>
-            <artifactId>onos-drivers</artifactId>
+            <artifactId>onos-drivers-default</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>