Staging: rtl8187se: fix styling issues in r8180_wx.c

This is a patch to the r8180_wx.c which fixes various whitespace issues,
brace issues, casting/declaration syntax issues, and increases
clarity in multi-line return statement.

Signed-off-by: Dan LaManna <dan.lamanna@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>