Merged in w8jcik/nuttx/w8jcik/option-to-enable-memory-card-debug-outpu-1488183957218 (pull request #224)

Kconfig: memory card debug output without SDIO

Approved-by: Gregory Nutt

SAM3/4: GPIO bit numbering typo fixes.

Approved-by: Gregory Nutt

Add basic support for the STM32F334 and Nucleo F334R8 board

Approved-by: Gregory Nutt

Kinetis:  Resolve issue with duplicate definitions of up_putc.  Addition conditional logic to pick just one.

Kinetis:Add LPUART

Approved-by: Gregory Nutt

   Pin out LPUART0 for testing
   Define BOARD_SOPT2_PLLFLLSEL ti select MCGPLLCLK
   Define BOARD_SIM_CLKDIV3_FREQ etal to provide BOARD_LPUART0_FREQ

  HAVE_SERIAL_CONSOLE -> HAVE_UART_CONSOLE to bew consistent with
  HAVE_LPUART_CONSOLE naming

  A board.h file can now specify the:
   1) BOARD_SOPT2_PLLFLLSEL to select the output of the SIM_SOPT2 MUX
     from:
       MCGFLLCLK
       MCGPLLCLK
       USB1PFD
       IRC48MHZ

    2) If it defines BOARD_SIM_CLKDIV3_FREQ then it must define
    BOARD_SIM_CLKDIV3_PLLFLLFRAC and BOARD_SIM_CLKDIV3_PLLFLLDIV
    which wil be used to cpnfigure SIM_CLKDIV3 [PLLFLLFRAC, PLLFLLDIV]