staging: sm750fb: Remove blank lines after { and before } braces.

Removed unnecessary blank lines after open brace and before closed
braces, to fix the check patch issue. Also removed braces which were not
required.

Signed-off-by: Varsha Rao <rvarsha016@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>