staging: csr: os.c: remove col variable

theres no point in checking the col variable,
its always zero, and wont print a new line, actually
its better to have a new line after a set of characters
printed, instead of confusing with the concatenated
characters when called multiple times at a time.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>