board: ls1012a: FRWY-LS1012A board support
    
    FRWY-LS1012A belongs to LS1012A family with features 2 1G SGMII PFE
    MAC, Micro SD, USB 3.0, DDR, QuadSPI, Audio, UART.
    
    Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
    [yorks: rebase and fix SPDX tag]
    [yorks: fix board/freescale/ls1012afrdm/Kconfig]
    Reviewed-by: York Sun <york.sun@nxp.com>