Checking exisitence before calling editValueFor in SensorDevice

Bug: 26320541
Test: compiles, test a few sensor and they all works
Change-Id: If0859e7560419f3955f29ae108f9268d0a2bbaa9
Merged-In: If0859e7560419f3955f29ae108f9268d0a2bbaa9
1 file changed