distribution.conf: add few options required by systemd

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
diff --git a/linaro/configs/distribution.conf b/linaro/configs/distribution.conf
index b1d96ac..6329bd9 100644
--- a/linaro/configs/distribution.conf
+++ b/linaro/configs/distribution.conf
@@ -1,4 +1,6 @@
+CONFIG_FHANDLE=y
 CONFIG_CGROUPS=y
+CONFIG_NAMESPACES=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
 CONFIG_SECCOMP=y
@@ -41,6 +43,7 @@
 CONFIG_BRIDGE_EBT_T_NAT=m
 CONFIG_BRIDGE_EBT_MARK_T=m
 CONFIG_BRIDGE=m
+# CONFIG_UEVENT_HELPER is not set
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_BLK_DEV_LOOP=y