udev/scsi_id: fix incorrect page length when get device identification VPD page
    
    The length of device identification VPD page is filled with two bytes,
    but scsi_id only gets the low byte. Fix it.
    
    Signed-off-by: Zhang Xianwei <zhang.xianwei8@zte.com.cn>
    (cherry picked from commit 1f7b6872dbe8ccae1f3bda9aa6aeb87c9b42e01e)
    
    Resolves: #1713227
    
    patch_name: 0207-udev-scsi_id-fix-incorrect-page-length-when-get-devi.patch
    present_in_specfile: true
    location_in_specfile: 207
    squash_commits: true