A number of the config options for USB networking have been migrated to
Kconfig. Update README.usb to reflect this.

Signed-off-by: Chris Packham <judge.packham@gmail.com>

Signed-off-by: Alison Chaiken <alison@she-devel.com>

Signed-off-by: Lukasz Majewski <lukma@denx.de>

Add some documentation for the live device tree support in U-Boot. This
was missing from the initial series.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Łukasz Majewski <lukma@denx.de>

The CONFIG_BLK conversion involves quite invasive changes in the U-Boot
code, with #ifdefs and different code paths. We should try to move over to
this soon so we can drop the old code.

Set a deadline of 9 months for this work, rounded up to the next release.

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

This converts the following to Kconfig:
   CONFIG_BCH

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

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

Conflicts:
	configs/imx6qdl_icore_mmc_defconfig
	configs/imx6qdl_icore_rqs_defconfig

Instead of having separate code in the 'nvme' command, adjust it to use
the common function.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>