[U-Boot] saveenv command on odroid c2

[Tyna Pelletier-Bilodeau]

Hi there,
I recently installed mainline u-boot on my odroid c2, that is latest 
release which is 2017.07. However I'm having a small issue and I don't 
know if it should be reported here or not, please feel free to correct 
me if not. I'm noticing that once it's installed, if I interrupt 
automatic booting and get in the u-boot console and type help, the 
saveenv command is not there. Even typing saveenv gives me 'unknown 
command'. So I checked the .config file in the source and I see this:

CONFIG_CMD_SAVEENV=y

What could possibly be missing ?
Thanks a lot :)