blk: [Partial] Replace SG_GAPGS with new queue limits mask

blk: [Partial] Replace SG_GAPGS with new queue limits mask

Several fixes went in upstream on top of queue_virt_boundary()
to address the gaps issue. However, back-porting queue_virt_boundary() api
disrupts iSER, storvsc and mpt3sas. Hence, implemented a hybrid
approach in QU4 got GAPS functionality. NVMe driver supports both
queue_virt_boundary() and QUEUE_FLAG_SG_GAPS to facilitate smooth
transistion.

Orabug: 26871819

Signed-off-by: Ashok Vairavan <ashok.vairavan@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Kyle Fortin <kyle.fortin@oracle.com>