configs/mini2440_defconfig: lock down kernel headers version

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

configs/mini2440_defconfig

@@ -15,6 +15,11 @@ BR2_TARGET_ROOTFS_JFFS2_NOCLEANMARKER=y
 BR2_TARGET_ROOTFS_JFFS2_LE=y
 BR2_TARGET_ROOTFS_TAR=y
 
+
+# Lock down headers to avoid breaking with new defaults
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="3.0.4"
+
 # Bootloader
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BOARDNAME="mini2440"