[automerger skipped] Add null check for pendingIntent2 ProtoLogs am: 7622d71aa5 -s ours

am skip reason: Merged-In Ib301a280e769cd9170fb5f02e3ddce111d796298 with SHA-1 af2067ef22 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26478328

Change-Id: I74e7255ed0131c291b399b73c6987971614b88e6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>