staging: binder: fix coding style issues

Fix coding style issues:
* put braces in all if-else branches;
* limit the length of changed lines to 80 columns.
checkpatch.pl warning count reduces by 3.

Change-Id: I1796588ef0f358780445203c5afa87361ab2bf73
Signed-off-by: Dmitry Voytik <voytikd@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>