[TCP]: TCP_CONG_YEAH requires TCP_CONG_VEGAS

These two congestion control modules share code.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index c68196c..719c1040 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -577,6 +577,7 @@
 config TCP_CONG_YEAH
 	tristate "YeAH TCP"
 	depends on EXPERIMENTAL
+	select TCP_CONG_VEGAS
 	default n
 	---help---
 	YeAH-TCP is a sender-side high-speed enabled TCP congestion control