Cleanup coding style; update CHANGELOG

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/net/bootp.c b/net/bootp.c
index cfe6f8d..55dcc81 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -979,7 +979,6 @@
 {
 	BootpRequest();
 }
-#endif
+#endif	/* CONFIG_CMD_DHCP */
 
-#endif
-
+#endif	/* CONFIG_CMD_NET */