MT#13711 Set up /etc/apt/apt.conf.d/42_ngcp_aptproxy on fresh lenny/squeeze installs

When we install a fresh squeeze system we want to avoid the
occasional "Hash Sum mismatch" errors during apt-get runs,
so let's not only cover that via upgrades but also in the
initial installation.

Also cover it for Debian lenny, since it very probably might
be affected as well (unverified though).

Change-Id: I01dbeec5ef2a727e5749be5db3ebea47818ed3b5
(cherry picked from commit c938ceaa62)

deployment.sh

@@ -1203,6 +1203,17 @@ fi
 sync
 mount "$ROOT_FS" "$TARGET"
 
+# MT#13711
+case "$DEBIAN_RELEASE" in
+  lenny|squeeze)
+    echo  "Setting up /etc/apt/apt.conf.d/42_ngcp_aptproxy to avoid random 'Hash Sum mismatch' failures."
+    logit "Setting up /etc/apt/apt.conf.d/42_ngcp_aptproxy to avoid random 'Hash Sum mismatch' failures."
+    echo "// NGCP_MANAGED_FILE - do not remove this line if it should be automatically handled" > "${TARGET}/etc/apt/apt.conf.d/42_ngcp_aptproxy"
+    echo "// Installed via 'deployment.sh' on $(date)" >> "${TARGET}/etc/apt/apt.conf.d/42_ngcp_aptproxy"
+    echo 'Acquire::http::Pipeline-Depth "0";' >> "${TARGET}/etc/apt/apt.conf.d/42_ngcp_aptproxy"
+    ;;
+esac
+
 # MT#7805
 if "$NGCP_INSTALLER" ; then
   cat << EOT | augtool --root="$TARGET"