staging:r8190: coding style: Fixed checkpatch reported Error

This is a patch to the r8190_rtl8256.c file that fixes
checkpatch reported space & coding style issues.

Signed-off-by: Sanjeev Sharma <Sanjeev_Sharma@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>