rk3308: optimize directory structure and remove unuse files

Change-Id: I11eaf882a76507da8eaef2fa03cdc2b7b97e37a1
Signed-off-by: Hans Yang <yhx@rock-chips.com>

rk3308/BoardConfig_32bit.mk

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Target arch
+export RK_ARCH=arm
+# Uboot defconfig
+export RK_UBOOT_DEFCONFIG=evb-aarch32-rk3308
+# Kernel defconfig
+export RK_KERNEL_DEFCONFIG=rk3308_linux_aarch32_debug_defconfig
+# Kernel dts
+export RK_KERNEL_DTS=rk3308-voice-module-board-v10-aarch32
+# boot image type
+export RK_BOOT_IMG=zboot.img
+# parameter for GPT table
+export RK_PARAMETER=parameter-32bit.txt
+# Buildroot config
+export RK_CFG_BUILDROOT=rockchip_rk3308_32_release
+# Recovery config
+export RK_CFG_RECOVERY=rockchip_rk3308_recovery
+# Pcba config
+export RK_CFG_PCBA=rockchip_rk3308_pcba
+# Build jobs
+export RK_JOBS=12
+# target chip
+export RK_TARGET_PRODUCT=rk3308
+# Set rootfs type, including ext2 ext4 squashfs
+export RK_ROOTFS_TYPE=squashfs
+# rootfs image path
+export RK_ROOTFS_IMG=buildroot/output/$RK_CFG_BUILDROOT/images/rootfs.$RK_ROOTFS_TYPE
+# Set oem partition type, including ext2 squashfs
+export RK_OEM_FS_TYPE=ext2
+# Set userdata partition type, including ext2, fat
+export RK_USERDATA_FS_TYPE=ext2
+# Set flash type. support <emmc, nand, spi_nand, spi_nor>
+export RK_STORAGE_TYPE=nand
+#OEM config: /oem/dueros/aispeech-6mic-64bit/aispeech-2mic-64bit/aispeech-4mic-32bit/aispeech-2mic-32bit/aispeech-2mic-kongtiao-32bit/iflytekSDK/CaeDemo_VAD/smart_voice
+export RK_OEM_DIR=oem
+#userdata config
+export RK_USERDATA_DIR=userdata_empty
+MIC_NUM=6