net: cosmetic: Rename CDPHandler to cdp_receive

This is not called as a handler, so don't name it that way

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/net/net.c b/net/net.c
index 67921c3..f6d294e 100644
--- a/net/net.c
+++ b/net/net.c
@@ -940,7 +940,7 @@
 
 #if defined(CONFIG_CMD_CDP)
 	if (iscdp) {
-		CDPHandler((uchar *)ip, len);
+		cdp_receive((uchar *)ip, len);
 		return;
 	}
 #endif