thermald: try fix sensor being nullptr

sensor was moved before get and passed to constructor.

BUG=b:147446814
TEST=CQ

Change-Id: I8188c84319c010e40683a0654d8ceb0db7796cc8
Reviewed-on: https://chrome-internal-review.googlesource.com/c/chromeos/thermald/+/2402192
Reviewed-by: Bryce Woodworth <ephax@google.com>
Reviewed-by: Sean Abraham <seanabraham@google.com>
Commit-Queue: Danny Mitzel <mitzel@google.com>
Tested-by: Bryce Woodworth <ephax@google.com>
1 file changed