Ship two kernel flavours on desktop image.

debian/changelog

@@ -2,6 +2,7 @@ livecd-rootfs (2.630) UNRELEASED; urgency=medium
 
   * Drop installing dummy transitional linux-signed-generic, these days
     linux-generic is always signed, on arches that need/support it.
+  * Ship two kernel flavours on desktop image.
 
  -- Dimitri John Ledkov <xnox@ubuntu.com>  Mon, 09 Dec 2019 14:21:08 +0000
 

live-build/auto/config

@@ -542,6 +542,7 @@ case $PROJECT in
 				LIVE_TASK='ubuntu-live'
 				add_task install minimal standard ubuntu-desktop
 				add_task live ubuntu-desktop-minimal-default-languages ubuntu-desktop-default-languages
+                KERNEL_FLAVOURS='generic oem'
 				;;
 		esac
 		;;