med: initial addition, Boundary Devices board

med.h: CONFIG_IPUV3_CLK 264000000
med: add CONFIG_CMD_GPIO
med: explicit fbp_detect_i2c
med: use boundary.h
med: add CONFIG_SPI_FLASH_SPANSION
med: med_defconfig add CONFIG_BLOCK_CACHE
med: use common code for eth init
med: eth.c now in common directory
med: move misc_init_r/do_kbd to common
med: move mmc_init/ dram_init/ overwrite_console/ common_board_init/ splash_screen_prepare/ board_cfb_skip to common
med: add  CONFIG_SPI_FLASH_GIGADEVICE: to defconfigs
med: add med_q1g.cfg
med: port to v2018.07

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

med: update to v2017.01
med: update to v2017.03

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