add rk809 spk hp

hc

2023-02-15 812ded0d8d6800728c4c11abed7546d735449123

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ALT BOARD
M:    Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
S:    Maintained
F:    board/renesas/alt/
F:    include/configs/alt.h
F:    configs/alt_defconfig