Work around missing kernel-sample.scc file in recent poky/master.

It looks like a bug on their part. See the code comment for details.

Changelog: None

Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>

meta-mender-qemu/recipes-kernel/linux/linux-yocto_%.bbappend

@@ -14,3 +14,10 @@ SRC_URI_append_vexpress-qemu-flash = " file://defconfig \
                                        "
 
 COMPATIBLE_MACHINE_vexpress-qemu-flash = "vexpress-qemu-flash"
+
+# See commit 28a1f5cd95cfd in poky. This was added in order to support running
+# kernel tests. However it appears that this file is not present in the source
+# at the time of writing. Rather than dig into this we will just remove this
+# patch for now. This can probably be removed later when upstream has fixed this
+# problem. (July 2018)
+KERNEL_FEATURES_remove_qemuall = "features/kernel-sample/kernel-sample.scc"