tiny-rootfs v0.0.3

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
bugfix: fixup TOP

The TOP value will be exchanged when you use "cd" command on Makefile.
use ${PWD}

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
busybox-1.22.0 support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
ALSA support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>