ANDROID: GKI: Fix abi break in struct scsi_cmd

In commit f2d30198 ("scsi: core: Use a structure member to track the
SCSI command submitter"), a new field is added to struct scsi_cmd, so to
preserve the ABI, use the space we have reserved already for this.

And update the .xml file to handle the structure change:

'struct scsi_cmnd at scsi_cmnd.h:69:1' changed:
  type size hasn't changed
  there are data member changes:
    data member u64 android_kabi_reserved1 at offset 3520 (in bits) became anonymous data member 'union {scsi_cmnd_submitter submitter; struct {u64 android_kabi_reserved1;}; union {};}'
  58 impacted interfaces


Bug: 161946584
Fixes: f2d30198 ("scsi: core: Use a structure member to track the SCSI command submitter")
Change-Id: Ie982511672bf23acb9774dc5ab43ce0b18733851
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>