Add 3 types boards for rk3308 voice modules:
// Only core board:
rk3308-voice-module-board-v10-aarch32.dts // only supports 2ch amic
// There are core board + main board:
rk3308-voice-module-amic-mainboard-v10-aarch32.dts // using max 4ch amic
rk3308-voice-module-pdm-mainboard-v10-aarch32.dts // using max 4ch pdm mic
Change-Id: Ieed43dbc246e03a6579da160281f858668841ec4
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>