scsi: mpt3sas: Demote log level for trace buffer allocation to info

scsi: mpt3sas: Demote log level for trace buffer allocation to info

Linux logs the error below:

    $ dmesg --level=err | grep mpt
    [    7.647675] mpt3sas_cm0: Trace buffer memory 2048 KB allocated

This state does not denote an error condition (and also no warning), so
demote the level from error to info.

Cc: it+linux-scsi@molgen.mpg.de
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/20230103150438.45922-1-pmenzel@molgen.mpg.de
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>