kernel-headers: update stable kernel version to 3.1.1

Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
diff --git a/toolchain/kernel-headers/Config.in b/toolchain/kernel-headers/Config.in
index 701a02d..7ac5dad 100644
--- a/toolchain/kernel-headers/Config.in
+++ b/toolchain/kernel-headers/Config.in
@@ -58,6 +58,6 @@
 	default "2.6.38.8"	if BR2_KERNEL_HEADERS_2_6_38
 	default "2.6.39.4"	if BR2_KERNEL_HEADERS_2_6_39
 	default "3.0.8"		if BR2_KERNEL_HEADERS_3_0
-	default "3.1"		if BR2_KERNEL_HEADERS_3_1
+	default "3.1.1"		if BR2_KERNEL_HEADERS_3_1
 	default "2.6"		if BR2_KERNEL_HEADERS_SNAP
 	default $BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION