[automerger skipped] libbinder_ndk: fix failure when dump/shell are unset am:...

[automerger skipped] libbinder_ndk: fix failure when dump/shell are unset am: deb53467 am: 6674db2d -s ours am: 836935fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/12371718

Change-Id: Iae83d63e79022065f396e336a003124100640443