Merge pull request #252 from nongxiaoming/rb4088-1.2.x

update the led driver.
[BSP] Remove the components initialization management.
[BSP] Remove the components initialization management.
[BSP] Remove the components initialization management.
[BSP] Remove rt_device_init_all() function invoking.
[BSP] Remove rt_device_init_all() function invoking.
[BSP] Remove rt_device_init_all() function invoking.
[BSP] Remove rt_device_init_all() function invoking.
Merge remote-tracking branch 'origin/master' into stable-v1.2.x