Smaller system, automatic eth0 work

Change-Id: I69c1964b385252cf3abac8a2161e47ae816c5272
diff --git a/configs/czechlight_beaglebone_defconfig b/configs/czechlight_beaglebone_defconfig
index 60b301f..322d5d5 100644
--- a/configs/czechlight_beaglebone_defconfig
+++ b/configs/czechlight_beaglebone_defconfig
@@ -8,6 +8,8 @@
 BR2_TARGET_GENERIC_PASSWD_SHA256=y
 BR2_INIT_SYSTEMD=y
 BR2_TARGET_GENERIC_GETTY_PORT="ttyO0"
+BR2_SYSTEM_DHCP="eth0"
+BR2_TARGET_TZ_INFO=y
 BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/beaglebone/post-image.sh"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
@@ -15,7 +17,9 @@
 BR2_LINUX_KERNEL_DEFCONFIG="omap2plus"
 BR2_PACKAGE_OPENSSH=y
 BR2_PACKAGE_BASH=y
+# BR2_PACKAGE_SYSTEMD_HWDB is not set
 BR2_PACKAGE_SYSTEMD_LOGIND=y
+# BR2_PACKAGE_SYSTEMD_MYHOSTNAME is not set
 BR2_PACKAGE_UTIL_LINUX_AGETTY=y
 BR2_PACKAGE_VIM=y
 # BR2_PACKAGE_VIM_RUNTIME is not set