* Add Makefile target `lpc-lnx-evb_config`.
 * Configure one more EMC address pin on LPC-LNX-EVB (in comparison to
EA-LPC1788) to make all 16 MBytes of NOR Flash work.
 * Remove pin configuration for UART2 (compared to EA-LPC1788), it is
not supported by this board.
 * Disable PLL1 and USB clock configuration.
 * The NOR Flash is CFI-compatible, so we do not need to use
`CONFIG_FLASH_CFI_LEGACY` unlike EA-LPC1788.
 * Update MAC and IP address.