Comment 59 for bug 1795453

Broadcom submitted the fix upstream:
https://marc.info/?l=linux-scsi&m=154514161019901&w=2
https://marc.info/?l=linux-scsi&m=154514161319908&w=2
https://marc.info/?l=linux-scsi&m=154514161619911&w=2

and the commit IDs of these patches from upstream:

894169db1246 scsi: megaraid_sas: Use 63-bit DMA addressing
7b9e2d348c2a scsi: megaraid_sas: driver version update

Please include them in the Ubuntu 18.04 LTS kernels.