Staging: vt6655: rxtx: Remove extra space character

Remove unnecessary space character after the variable RATE_16M
preserving the alignment of all other variables and comments.
Fixes the warning by checkpatch:  space prohibited before
that ',' (ctx:WxW)

Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>