ARM: imx_v7_defconfig: remove board specific part from environment

This makes no sense for a generic defconfig.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of: Use correct devicetree in of_print_cmdline

of_print_cmdline() is passed a devicetree, so use this one instead
of the internal devicetree. This fixes the cmdline printout when
bootm on ARM is used with an external devicetree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of: net: Use correct devicetree in eth_of_fixup

eth_of_fixup() is passed a devicetree, so use this one instead
of the internal devicetree. This makes sure it also works when
the tree to fixup is not the internal one.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of: Use dts syntax when printing devicetrees

Our devicetree printing is close to correct dts syntax, so fix
some remaining differences:

- Use an equal sign instead of a colon to separate a poperty name and
  a value
- Add a semicolon at the end of properties
- Make sure we do not print a separator for empty properties

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ARM: bootm: Print Kernel commandline unconditionally

The Kernel commandline is an important debugging aid when people
ask why their Kernel won't start, so print it unconditionally.
This is done in !dt mode anyway, so also do it with dt.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>