jlm: initial addition, Boundary Devices board

jlm.h: CONFIG_IPUV3_CLK 264000000
jlm: emmc is mmc 1, sdcard is mmc 0
jlm: add CONFIG_CMD_GPIO
jlm: add jlm_2g_defconfig
jlm: explicit fbp_detect_i2c
jlm: add wlmac
jlm: verify port in board_ehci_hcd_init
jlm: use boundary.h
jlm: setup rgb_gpio_pads in board_early_init_f
jlm: add CONFIG_SPI_FLASH_SPANSION
jlm: jlm_1g_defconfig add CONFIG_BLOCK_CACHE
jlm_2g: jlm_2g_defconfig add CONFIG_BLOCK_CACHE
jlm: use common code for eth init
jlm: eth.c now in common directory
jlm: move misc_init_r/do_kbd to common
jlm: move mmc_init/ dram_init/ overwrite_console/ common_board_init/ splash_screen_prepare/ board_cfb_skip to common
jlm: use common 1066mhz_4x256mx16.cfg
jlm: use common 1066mhz_4x128mx16.cfg
jlm: add  CONFIG_SPI_FLASH_GIGADEVICE: to defconfigs
jlm: use common ddr scripts
jlm: port to v2018.07

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>

jlm: fix ISL29023 IRQ pin initialization
jlm: update to v2017.01
jlm: update to v2017.03

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>