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.

Updated the .xml file for the new change:
type 'struct scsi_cmnd' changed
  member 'union { enum scsi_cmnd_submitter submitter; struct { u64 android_kabi_reserved1; }; union { }; }' was added
  member 'u64 android_kabi_reserved1' was removed

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>