Add CONFIG_BOOTCOUNT_ALTBOOTCMD so the developer is able to add
custom altbootcmd via Kconfig when they enable BOOTCOUNT. With this now
in Kconfig, we need to move it from environment files / config.h files
and in to the defconfig file.

This was done by generating u-boot-initial-env for all platforms before
the Kconfig change, to extract altbootcmd values and then again after to
compare the result.

[trini: Perform migration to defconfigs, reword commit message]
Signed-off-by: Tom Rini <trini@konsulko.com>

The definition of CFG_MXC_USB_PORTSC as (PORT_PTS_UTMI | PORT_PTS_PTW)
can be removed from mx5/mx6/mx7/mx8m board config files as it is the
default in drivers/usb/host/ehci-mx5.c and drivers/usb/host/ehci-mx6.c.

Suggested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>

CFG_MXC_USB_PORT is not used anywhere, so remove this unused symbol.

Suggested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>

Perform simple renames of:
   CONFIG_MXC_USB_FLAGS to CFG_MXC_USB_FLAGS
   CONFIG_MXC_USB_PORT to CFG_MXC_USB_PORT
   CONFIG_MXC_USB_PORTSC to CFG_MXC_USB_PORTSC

Signed-off-by: Tom Rini <trini@konsulko.com>

Perform a simple rename of CONFIG_EXTRA_ENV_SETTINGS to CFG_EXTRA_ENV_SETTINGS

Signed-off-by: Tom Rini <trini@konsulko.com>

This converts the following to Kconfig:
   CONFIG_IMX_VIDEO_SKIP
   CONFIG_IMX_HDMI

Signed-off-by: Tom Rini <trini@konsulko.com>

On platforms that use DM_PWM, we do not need to define this value
anymore, so remove it from config files.

Signed-off-by: Tom Rini <trini@konsulko.com>

This converts the following to Kconfig:
   CONFIG_FSL_IIM

Signed-off-by: Tom Rini <trini@konsulko.com>

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>