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: 1f8f9c34 ("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.comSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_mid.c

@@ -1186,7 +1186,7 @@ int qla_get_buf(struct scsi_qla_host *vha, struct qla_qpair *qp, struct qla_buf_
 	return 0;
 }
 
-void qla_trim_buf(struct qla_qpair *qp, u16 trim)
+static void qla_trim_buf(struct qla_qpair *qp, u16 trim)
 {
 	int i, j;
 	struct qla_hw_data *ha = qp->vha->hw;
@@ -1218,7 +1218,7 @@ void qla_trim_buf(struct qla_qpair *qp, u16 trim)
 	       qp->id, trim, qp->buf_pool.num_alloc);
 }
 
-void __qla_adjust_buf(struct qla_qpair *qp)
+static void __qla_adjust_buf(struct qla_qpair *qp)
 {
 	u32 trim;