arm-autonomy: Use busybox instead of GNU tar

Switch out the tar used by xenguest-manager and xenguest-mkimage.
xenguest-mkimage requires the --exclude flag so enable the Busybox
CONFIG_FEATURE_TAR_LONG_OPTIONS option.

Issue-Id: SCM-2034
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
Change-Id: Iceed017ef8ebd058e6c06156989aaa2a4bff9103
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm-autonomy/recipes-core/busybox/busybox/feature_tar_long_options.cfg

@@ -0,0 +1 @@
+CONFIG_FEATURE_TAR_LONG_OPTIONS=y

meta-arm-autonomy/recipes-core/busybox/busybox_%.bbappend

@@ -0,0 +1,4 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+# The --exclude flag in Busybox tar is required by xenguest-mkimage
+SRC_URI += "file://feature_tar_long_options.cfg"

meta-arm-autonomy/recipes-extended/xenguest/xenguest-manager.bb

@@ -63,7 +63,7 @@ do_install() {
 }
 
 # Things that we need on the target
-RDEPENDS_${PN} += "bash tar xenguest-mkimage lvm2 xen-tools parted e2fsprogs \
+RDEPENDS_${PN} += "bash xenguest-mkimage lvm2 xen-tools parted e2fsprogs \
                    dosfstools logrotate"
 
 FILES_${PN} += "${bindir}/xenguest-manager \

meta-arm-autonomy/recipes-extended/xenguest/xenguest-mkimage.bb

@@ -27,7 +27,7 @@ do_install() {
     install -m 755 xenguest-mkimage ${D}${bindir}/.
 }
 
-# We need bash and tar
-RDEPENDS_${PN} = "bash tar"
+# We need bash
+RDEPENDS_${PN} = "bash"
 FILES_${PN} = "${bindir}/xenguest-mkimage"