base-files: stage /etc/skel

Having skel in the staging area lets other recipes access these files.
For ex. recipes inheriting useradd, if passing "-m" to USERADD_PARAM,
.bashrc and .profile are put automatically in $HOME, as expected.

(From OE-Core rev: 784f4c80204a09b85b7e83c9bd91cd48f001384f)

Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu@ni.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/base-files/base-files_3.0.14.bb

@@ -167,6 +167,10 @@ do_install_append_linuxstdbase() {
         done
 }
 
+sysroot_stage_all_append () {
+	sysroot_stage_dir ${D}${sysconfdir}/skel ${SYSROOT_DESTDIR}${sysconfdir}/skel
+}
+
 PACKAGES = "${PN}-doc ${PN} ${PN}-dev ${PN}-dbg"
 FILES_${PN} = "/"
 FILES_${PN}-doc = "${docdir} ${datadir}/common-licenses"