commands: remove maxargs ...

No need to check for maximum argument counts. The commands are
safe to be called with more arguments, so lets safe some bytes.

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

saveenv: close file ...

Close the file in saveenv before calling envfs_save and reopen it
afterwards. NAND Bad block aware devices allow opening a file only
once.

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

Subject: [PATCH] [general] Fixed constant strings in data section issue ...

For practical reasons I changed all string literals assumed to be constant
to reside in .rodata subsection at end of .text section.

Signed-off-by: Carsten Schlote <schlote@vahanus.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

separating environment commands, part 2 ...

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>