Move Checkstyle files to src/conf

pom.xml

@@ -548,7 +548,7 @@ under the License.
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>
         <configuration>
-          <configLocation>${basedir}/checkstyle.xml</configLocation>
+          <configLocation>${basedir}/src/conf/checkstyle.xml</configLocation>
           <includeTestSourceDirectory>true</includeTestSourceDirectory>
           <enableRulesSummary>false</enableRulesSummary>
         </configuration>
@@ -663,7 +663,7 @@ under the License.
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>
         <configuration>
-          <configLocation>${basedir}/checkstyle.xml</configLocation>
+          <configLocation>${basedir}/src/conf/checkstyle.xml</configLocation>
           <enableRulesSummary>false</enableRulesSummary>
         </configuration>
       </plugin>