Modified bgp file name according to naming convention.

Change-Id: I403139b53fbc1a2dba894dfd39720707a52ba7cd
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java
index 52bae46..7b5cabe 100644
--- a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java
@@ -26,7 +26,7 @@
 /**
  * Provides AreaID Tlv which contains opaque value (32 Bit Area-ID).
  */
-public class AreaIDTlv implements BGPValueType {
+public class AreaIDTlv implements BgpValueType {
 
     /* Reference :draft-ietf-idr-ls-distribution-11
      *  0                   1                   2                   3