Distinguish libhwbinder log tags.

find ./*.cpp -type f -exec sed -i -e 's/LOG_TAG "/LOG_TAG "hw-/g' {} \;

Also added logtag for BufferedTextOutput.

Fixes: 35713802
Test: hidl_test (for sanity)
Change-Id: I7159dca318c1014a61046d247ef31d67c3ac2b55
diff --git a/BufferedTextOutput.cpp b/BufferedTextOutput.cpp
index 36f212b..8ef48e1 100644
--- a/BufferedTextOutput.cpp
+++ b/BufferedTextOutput.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "hw-BufferedTextOutput"
+
 #include <hwbinder/BufferedTextOutput.h>
 #include <hwbinder/Debug.h>