configs/beaglebone_defconfig: lock down kernel headers version

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

configs/beaglebone_defconfig

@@ -8,6 +8,9 @@ BR2_TARGET_GENERIC_GETTY_PORT="ttyO0"
 # BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
 BR2_TARGET_ROOTFS_EXT2=y
 # BR2_TARGET_ROOTFS_TAR is not set
+# Lock down headers to avoid breaking with new defaults
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="3.2.9"
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BOARDNAME="am335x_evm"
 BR2_TARGET_UBOOT_2012_10=y