HPB WRITE BUFFER with buffer-id = 0x3h is supported in device control mode
only.

Link: https://lore.kernel.org/r/20210712095039.8093-11-avri.altman@wdc.comSigned-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>