thermal: allow severity_ref check for any valid sensors

The severity_reference check will return fail if any of the ref sensor is failed to be updated, the CL allows the check for other valid sensors  and provide the severity reference

Bug: 407124969
Test: verified by emul_temp VSKIN to 55C

Change-Id: I40839937d016b27482bf8779fc6ca9a0f78fca68
1 file changed