Staging: sm750fb: Remove unnecessary blank line

Remove unnecessary blank line.
This patch is detected by checkpatch.pl script .
CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>