scsi: qla2xxx: Make qla_trim_buf() and __qla_adjust_buf() static

scsi: qla2xxx: Make qla_trim_buf() and __qla_adjust_buf() static

Smatch reports:

drivers/scsi/qla2xxx/qla_mid.c:1189:6: warning: symbol 'qla_trim_buf' was not declared. Should it be static?
drivers/scsi/qla2xxx/qla_mid.c:1221:6: warning: symbol '__qla_adjust_buf' was not declared. Should it be static?

These functions are only used in qla_mid.c, so they should be static.

Fixes: 1f8f9c34127e ("scsi: qla2xxx: edif: Reduce memory usage during low I/O")
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20230114013724.3943580-1-trix@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>