Move buildroot to bsp directory.

bsp/buildroot/configs/beaglebone_defconfig

@@ -0,0 +1,40 @@
+# architecture
+BR2_arm=y
+BR2_cortex_a8=y
+BR2_ARM_EABIHF=y
+
+# system
+BR2_TARGET_GENERIC_HOSTNAME="beaglebone"
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y
+BR2_TARGET_GENERIC_GETTY_PORT="ttyO0"
+# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/beaglebone/post-image.sh"
+
+# filesystem
+BR2_PACKAGE_AM33X_CM3=y
+BR2_TARGET_ROOTFS_EXT2=y
+# BR2_TARGET_ROOTFS_TAR is not set
+
+# Linux headers same as kernel, a 3.12 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_12=y
+
+# bootloader
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BOARDNAME="am335x_evm"
+BR2_TARGET_UBOOT_CUSTOM_VERSION=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2013.10"
+BR2_TARGET_UBOOT_FORMAT_IMG=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="MLO"
+
+# kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="7f280334068b7c875ade51f8f3921ab311f0c824"
+BR2_LINUX_KERNEL_PATCH="board/beaglebone/patches/linux/"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/beaglebone/linux-3.12.config"
+BR2_LINUX_KERNEL_ZIMAGE=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="am335x-bone am335x-boneblack"