sumo migration: sync distro config

Signed-off-by: Arturo Buzarra <arturo.buzarra@digi.com>

meta-digi-dey/conf/distro/dey.conf

@@ -55,7 +55,7 @@ PREFERRED_VERSION_bluez5 ?= "5.46"
 PREFERRED_PROVIDER_jpeg ?= "jpeg"
 PREFERRED_PROVIDER_jpeg_armv7a ?= "libjpeg-turbo"
 
-PREFERRED_VERSION_linux-yocto ?= "4.12%"
+PREFERRED_VERSION_linux-yocto ?= "4.14%"
 
 # Some features (swupdate, environment encryption) depends on this specific
 # provider for u-boot-fw-tools
@@ -109,20 +109,16 @@ https://.*/.*    http://downloads.yoctoproject.org/mirror/sources/ \n"
 CONNECTIVITY_CHECK_URIS ?= "https://www.example.com/"
 
 SANITY_TESTED_DISTROS ?= " \
-            poky-2.2 \n \
-            poky-2.3 \n \
+            poky-2.4 \n \
+            poky-2.5 \n \
             ubuntu-15.04 \n \
             ubuntu-16.04 \n \
-            ubuntu-16.10 \n \
-            ubuntu-17.04 \n \
-            fedora-24 \n \
-            fedora-25 \n \
-            fedora-26 \n \
+            ubuntu-18.04 \n \
+            fedora-28 \n \
             centos-7 \n \
             debian-8 \n \
             debian-9 \n \
-            opensuse-42.1 \n \
-            opensuse-42.2 \n \
+            opensuse-42.3 \n \
             "
 #
 # OELAYOUT_ABI allows us to notify users when the format of TMPDIR changes in