libbinder use stronger refbase semantics

As a larger example of how to use
ANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION.

Bug: 184190315
Test: boot (relevant tests in TEST_MAPPING)

Change-Id: I88283543e1f63fd1010f9cd3f63baefec84e6a84
diff --git a/libs/binder/BufferedTextOutput.cpp b/libs/binder/BufferedTextOutput.cpp
index 349658e..a90bfd2 100644
--- a/libs/binder/BufferedTextOutput.cpp
+++ b/libs/binder/BufferedTextOutput.cpp
@@ -254,7 +254,7 @@
         BufferState* bs = ts.states[mIndex].get();
         if (bs != nullptr && bs->seq == mSeq) return bs;
 
-        ts.states.editItemAt(mIndex) = new BufferState(mIndex);
+        ts.states.editItemAt(mIndex) = sp<BufferState>::make(mIndex);
         bs = ts.states[mIndex].get();
         if (bs != nullptr) return bs;
     }