angstrom: Fix access using empty root password

We are not able to login into angstrom images now
since many chnages has gone into upstream OE-core
drop libpam change to drop secure nullok

add empty-root-password to EXTRA_IMAGE_FEAUTURES
it should actually be controlled and added only for
debug images, but thats for production folks

Signed-off-by: Khem Raj <raj.khem@gmail.com>

conf/distro/include/angstrom-core-tweaks.inc

@@ -36,7 +36,7 @@ MACHINEOVERRIDES[vardepsexclude] += "SOC_FAMILY"
 
 # opkg
 PREFERRED_PROVIDER_opkg-collateral = "angstrom-feed-configs"
-EXTRA_IMAGE_FEATURES ?= "package-management"
+EXTRA_IMAGE_FEATURES ?= "package-management empty-root-password"
 
 PREFERRED_PROVIDER_os-release = "angstrom-version"
 

recipes-tweaks/pam/libpam_1.1.6.bbappend

@@ -1,4 +0,0 @@
-#allow empty password
-do_install_append () {
-	sed -i -e 's:nullok_secure:nullok:g' ${D}${sysconfdir}/pam.d/common-auth
-}