IPv6: Fix 6RD typo

Following fix a small typo.

Signed-off-by: Alexandre Cassen <acassen@freebox.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index f561998..a578096 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -171,7 +171,7 @@
 	  Saying M here will produce a module called sit. If unsure, say Y.
 
 config IPV6_SIT_6RD
-	bool "IPv6: IPv6 Rapid Development (6RD) (EXPERIMENTAL)"
+	bool "IPv6: IPv6 Rapid Deployment (6RD) (EXPERIMENTAL)"
 	depends on IPV6_SIT && EXPERIMENTAL
 	default n
 	---help---