[HAL] LPC11xx - updated clock configuration registers
[HAL] LPC11xx - finished UART implementation
[HAL] LPC11xx - first implementation of IO configuration
[HAL] LPC11xx - updated machine description
[HAL] LPC11xx - added ioconfig file
[BSP] LPC11xx - added support for devfs
[HAL] LPC11xx - bugfix with ifdef
[HAL] LPC11xx - added config for SYSTICK divider value
[HAL] LPC11xx - moved IOConfig to machine init function
[HAL] LPC11xx - bugfix with PLL divider value
[HAL] LPC11xx - extended support for IO configuration
[HAL] LPC11xx - support for Kconfig, added machine init function
[HAL] LPC11xx - initial Kconfig implementation
[HAL] STM32 - add Kconfig to STM32 platform
[BSP] LPC11xx - added Kconfig to BSP