oc: initial addition, Boundary Devices board

Includes ocquad, ocsolo, and ocsolo1g
oc.h: CONFIG_IPUV3_CLK 264000000
oc: setup_dispay is done in fbpanel
oc: add CONFIG_CMD_GPIO
oc: explicit fbp_detect_i2c
oc: verify port in board_ehci_hcd_init
oc: use boundary.h
oc: add CONFIG_SPI_FLASH_SPANSION
oc: ocquad_defconfig add CONFIG_BLOCK_CACHE
oc: use common code for eth init
oc: eth.c now in common directory
oc: move misc_init_r/do_kbd to common
oc: move mmc_init/ dram_init/ overwrite_console/ common_board_init/ splash_screen_prepare/ board_cfb_skip to common
oc: use common 1066mhz_4x128mx16.cfg
oc: add  CONFIG_SPI_FLASH_GIGADEVICE: to defconfigs
oc: use common ddr scripts
oc: port to v2018.07

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

oc: update to v2017.01
oc: update to v2017.03

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