oniro-openharmony-linux.conf: Reduced default distro features set

Let's start out with most basic distro features only, and build up from there as
we see the need.

Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>

conf/distro/oniro-openharmony-linux.conf

@@ -18,6 +18,9 @@ CLANGSDK = "1"
 # Include static libraries in SDK
 SDKIMAGE_FEATURES:append = " staticdev-pkgs"
 
+ONIRO_OPENHARMONY_DEFAULT_DISTRO_FEATURES = "ipv4 ptest"
+DISTRO_FEATURES ?= "${ONIRO_OPENHARMONY_DEFAULT_DISTRO_FEATURES}"
+
 # Linux kernel version
 PREFERRED_VERSION_linux-yocto = "5.10.%"