staging: greybus: Fix a commit coding style issue.

Fixes a comment coding style warning by adding 2 blank lines. Issue
found by checkpatch.

Signed-off-by: Sidhant Gupta <guptasidhant004@gmail.com>
Acked-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>