NativeTombstoneManager: catch ProtoParseException.

If we can't parse the proto for some reason, don't nuke system_server.

Bug: http://b/159164105
Test: `adb shell crasher` on sc-vf-dev
Change-Id: Id8af5f41177d68dacfd9da69eddea4d88d62f420
(cherry picked from commit 2b67941ffe592d9a3f1eb9f87bfce58ebb47d570)
1 file changed