LU-15452 utils: support lctl getattr for osc

LU-15452 utils: support lctl getattr for osc

In lctl:jt_obd_getattr(), support FIDs in addition to OIDs and print
whatever valid attributes were returned. Add a supporting
OBD_IOC_GETATTR case to osc_iocontrol().

  # function lctl_osc_device() {
    # Find osc device name for file and index.
    # lctl_osc_device /mnt/lustre/... 42 => lustre-OST002a-osc-ffff89cca1555000
    local path="$1"
    local index="$2"
    local fsname=$(lfs getname --fsname "$path")
    local instance=$(lfs getname --instance "$path")

    printf '%s-OST%04x-osc-%sn' "$fsname" "$index" "$instance"
  }
  # lfs getstripe /mnt/lustre/f0 | grep l_ost_idx
        - 0: { l_ost_idx: 1, l_fid: [0x100010000:0x2:0x0] }
        - 1: { l_ost_idx: 2, l_fid: [0x100020000:0x2:0x0] }
        - 0: { l_ost_idx: 3, l_fid: [0x100030000:0x2:0x0] }
        - 1: { l_ost_idx: 0, l_fid: [0x100000000:0x2:0x0] }
  # lctl --device $(lctl_osc_device /mnt/lustre 1) getattr '[0x100010000:0x2:0x0]'
  valid: 0x110000001008fff
  oi.oi.oi_id: 0x100020000
  oi.oi.oi_seq: 0x2
  oi.oi_fid: [0x100020000:0x2:0x0]
  atime: 0
  mtime: 1642178551
  ctime: 1642178551
  size: 0
  blocks: 0
  blksize: 4194304
  mode: 0107666
  uid: 0
  gid: 0
  flags: 2097152
  layout_version: 3
  projid: 0
  data_version: 4294967298

Lustre-change: https://review.whamcloud.com/46131
Lustre-commit: 4143c3bdec2a87319a6c9dee4a589cd41e85dad3

Signed-off-by: John L. Hammond <jhammond@whamcloud.com>
Change-Id: I57d5778e9ac39030ae9477a0979f20b7f7460fc8
Reviewed-on: https://review.whamcloud.com/46390
Reviewed-by: Mike Pershin <mpershin@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>