Update Buildroot to 2019.02.3 (#415)

* Update Buildroot to 2019-02.3

* Fix enter script

* Update ova_defconfig

* Fix network manager

* Remove runc patches

* Use same docker version

* Fix build

* Fix vmtools

* Fix depens

* Fix handling with tempfiles

* Fix permission handling

* Fix cp

* Cleanup

* Fix mounts

buildroot/package/python3/0031-Add-an-option-to-disable-uuid-module.patch

@@ -12,7 +12,7 @@ diff --git a/configure.ac b/configure.ac
 index b022460e73..505b7c9be0 100644
 --- a/configure.ac
 +++ b/configure.ac
-@@ -3258,6 +3258,15 @@ if test "$CURSES" = "no"; then
+@@ -3322,6 +3322,15 @@ if test "$CURSES" = "no"; then
     DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} _curses _curses_panel"
  fi