Update git submodules

Update git submodules

* Update docs/submodules/releng/builder from branch 'master'
  to b29436323463e8c5564ba31de4ba00edd133e643
  - Merge changes from topic 'shellcheck'

    * changes:
      Fix SC2086 Double quote variables
      Fix SC2086 for lines 300 until EOF
      Fix SC2086 for lines 490 until EOF
      Fix SC2086 for lines 575 until EOF
      Fix SC2086 for lines 700 until EOF
      Fix SC2086 for lines 940 until EOF
      Fix SC2004 $/${} unnecessary on arithmetic vars
      Fix SC2006 backtick syntax is legacy

  - Fix SC2086 Double quote variables

    Double quote to prevent globbing and word splitting

    Change-Id: Ieb057e388a4ae0dcf1237f395b1052dd2c23be9e
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2086 for lines 300 until EOF

    Double quote to prevent globbing and word splitting

    Change-Id: I610b8ffe9a8140b1381a5ee6e16fbea96621b209
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2086 for lines 490 until EOF

    * Double quote to prevent globbing and word splitting
    * SC2035: Use ./*glob* or -- *glob* so names with dashes
              won't become options

    Change-Id: I118743d0f9f4e4a413cecd0234a9dff48ba993c2
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2086 for lines 575 until EOF

    Double quote to prevent globbing and word splitting

    Change-Id: I245d01e71ce04bd968d7ad9a13589586ea30e53e
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2086 for lines 700 until EOF

    Double quote to prevent globbing and word splitting

    Change-Id: Ic34ae97f05b8e6180d91ccd5479e1cd56ee52e44
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2086 for lines 940 until EOF

    Double quote to prevent globbing and word splitting

    Change-Id: I5326e70fd7978f3971031656fbf5179929181410
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2004 $/${} unnecessary on arithmetic vars

    Change-Id: Id068d46b56d6c5c1555b2d95f04f39f465ff573c
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>
  - Fix SC2006 backtick syntax is legacy

    Also resolve SC2086 Double quote to prevent globbing and word splitting
    for backtick affected lines.

    Change-Id: I00f3e2537e05da25996d913b80cd0b3d4d8d3c09
    Signed-off-by: Thanh Ha <zxiiro@gmail.com>