modify rk ethernet driver
BT:使得APxx系列蓝牙可用，客户请对比更新rk3188_steak_defconfig
remove esc key from rk29_key_button
Merge branch 'master' of 172.16.10.211:rk3188/box/4.2.2_r1
Defconfig:Surport BT(BT keyboard etc) input device.
support vga.
WIFI&BT:Update wifi&bt drivers
        Support more modules,OOB for wifi modules
        BT4.0,it depends on the module support BT4.0
Solve the bug:
    Connect fail if use otg port to connect usb camera
Audio:Usb: change timeout value to avoid uvc720p audio set parameter fail.
Merge branch 'master' of 172.16.10.211:rk3188/box/4.2.2_r1
lcdc: fix yuv black level error.
Audio:

- optimize direct output.
- update spdif driver, keep optical light always on.
Merge branch 'master' of 172.16.10.211:rk3188/box/4.2.2_r1
it66121: revert reg REG_TX_PLL_CTRL value to improve tmds signal jitter.
Merge branch 'radxa/mirror/rockchip' into rockchip-3.0