Merge "libpower: Check if suspend service is null" am: a719829bb8 am: 17c06cc780 am: 019e325e34 am: d6d2e1a677

Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware_legacy/+/1786228

Change-Id: Ie5be5290f639e6c17882a9109917568c00e5be8d