Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 507bda29594ce40ed66830183ec5647f39031299
  - Fixing typo in download-pip.sh script
    
    Change-Id: I1216cb0fc2f47f29ef7f3880a03f4e6a3dfd3ec4
    Issue-ID: OOM-1879
    Signed-off-by: eronkeo <ronan.keogh@est.tech>
    
diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index b1fe785..507bda2 160000
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit b1fe78553ea7d1caf90c1d52e195cd8f2a082008
+Subproject commit 507bda29594ce40ed66830183ec5647f39031299