Merge "libbinder: save another static heap allocation" am: e994648817 am: 290daf4eb5 am: 8b59261674 am: 29b48e6212

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1727270

Change-Id: I974d2c6f531548f9bad5ea452e0e76205cf99bb2