Unable to boot sandbox64 with test dtb

[Sughosh Ganu]

hi,
Since "1fad2cb852 thermal: add sandbox driver", sandbox64 does not
boot with the test device tree. Trying to boot with the -T option
results in a crash.

Creating new bloblist size 400 at c000
Error binding driver 'thermal-sandbox': -96
Some drivers failed to bind
initcall sequence 000055d97913d340 failed at call 00000000000660c5 (err=-96)
### ERROR ### Please RESET the board ###

Robert, can you please check how this can be fixed on the sandbox64
variant. Thanks.

-sughosh