global: Avoid indirect inclusion of <env.h> from <command.h>

global: Avoid indirect inclusion of <env.h> from <command.h>

The include file <command.h> does not need anything from <env.h>.
Furthermore, include/env.h itself includes other headers which can lead
to longer indirect inclusion paths. To prepare to remove <env.h> from
<command.h> fix all of the places which had relied on this indirect
inclusion to instead include <env.h> directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
---
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Jerome Forissier <jerome.forissier@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Mark Kettenis <kettenis@openbsd.org>
Cc: Masahisa Kojima <kojima.masahisa@socionext.com>
Cc: Mattijs Korpershoek <mkorpershoek@kernel.org>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Stefan Bosch <stefan_b@posteo.net>
Cc: Tien Fong Chee <tien.fong.chee@altera.com>
Cc: Tingting Meng <tingting.meng@altera.com>
Cc: Tobias Waldekranz <tobias@waldekranz.com>