Do not throw SIGABORT on shutdown or HAL crash

The SIGABORT stack dump confuses APC into thinking there is
a crash in the nfc service.

Bug: 195455309
Test: reboot, nfc on/off, tag read
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:d6c829f55d677184d55bd3b7bc559c2fef4a24a6)
Merged-In: I924ea426a67a3ae781207c958ba305b543ed4ded
Change-Id: I924ea426a67a3ae781207c958ba305b543ed4ded