Staging: bcm: nvm.c: Don't pass the index

The variable 'i' does not need to be passed, as we set it to 0 (zero)
anyways when starting the iteration here.

Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>