liblog: add __android_log_close() am: b1b5d507cb am: f72c9bc42d am: 49d5582f29 am: 1b1b6a4889  -s ours am: 4eb04cb32b am: 61b901a31d
am: 6ab0087980

Change-Id: I39746398272db509176d9ecb6be45d7b61d90fed