liblog: add __android_log_close() am: b1b5d507cb am: f72c9bc42d am: 49d5582f29 am: 1b1b6a4889  -s ours am: 4eb04cb32b
am: 38f72ac44a

Change-Id: I0ad2d50b03195b3742f4404119f82b068d610cfe