meta-yocto: rename busybox's bbappend file to match the current version

Rename the bbappend file to match the current version of busybox.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

diff --git a/meta-yocto/recipes-core/busybox/busybox-1.21.1/poky-tiny/defconfig b/meta-yocto/recipes-core/busybox/busybox/poky-tiny/defconfig
similarity index 100%
rename from meta-yocto/recipes-core/busybox/busybox-1.21.1/poky-tiny/defconfig
rename to meta-yocto/recipes-core/busybox/busybox/poky-tiny/defconfig

diff --git a/meta-yocto/recipes-core/busybox/busybox_1.21.1.bbappend b/meta-yocto/recipes-core/busybox/busybox_%.bbappend
similarity index 100%
rename from meta-yocto/recipes-core/busybox/busybox_1.21.1.bbappend
rename to meta-yocto/recipes-core/busybox/busybox_%.bbappend