Bump buildroot to 2020.11-rc1 (#985)

* Update buildroot-patches for 2020.11-rc1 buildroot

* Update buildroot to 2020.11-rc1

Signed-off-by: Stefan Agner <stefan@agner.ch>

* Don't rely on sfdisk --list-free output

The --list-free (-F) argument does not allow machine readable mode. And
it seems that the output format changes over time (different spacing,
using size postfixes instead of raw blocks).

Use sfdisk json output and calculate free partition space ourselfs. This
works for 2.35 and 2.36 and is more robust since we rely on output which
is meant for scripts to parse.

* Migrate defconfigs for Buildroot 2020.11-rc1

In particular, rename BR2_TARGET_UBOOT_BOOT_SCRIPT(_SOURCE) to
BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT(_SOURCE).

* Rebase/remove systemd patches for systemd 246

* Drop apparmor/libapparmor from buildroot-external

* hassos-persists: use /run as directory for lockfiles

The U-Boot tools use /var/lock by default which is not created any more
by systemd by default (it is under tmpfiles legacy.conf, which we no
longer install).

* Disable systemd-update-done.service

The service is not suited for pure read-only systems. In particular the
service needs to be able to write a file in /etc and /var. Remove the
service. Note: This is a static service and cannot be removed using
systemd-preset.

* Disable apparmor.service for now

The service loads all default profiles. Some might actually cause
problems. E.g. the profile for ping seems not to match our setup for
/etc/resolv.conf:
[85503.634653] audit: type=1400 audit(1605286002.684:236): apparmor="DENIED" operation="open" profile="ping" name="/run/resolv.conf" pid=27585 comm="ping" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

buildroot/package/python3/0018-Add-an-option-to-disable-the-curses-module.patch

@@ -1,4 +1,4 @@
-From 332373ca25f2dbe5473330666ec49143506a4dc0 Mon Sep 17 00:00:00 2001
+From 962deb43f5f340a8472d432ae8e6d61186f9040e Mon Sep 17 00:00:00 2001
 From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 Date: Wed, 22 Feb 2017 17:31:51 -0800
 Subject: [PATCH] Add an option to disable the curses module
@@ -8,25 +8,23 @@ Signed-off-by: Samuel Martin <s.martin49@gmail.com>
 [ Andrey Smirnov: ported to Python 3.6 ]
 Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
 ---
- Makefile.pre.in | 7 +++++--
+ Makefile.pre.in | 5 ++++-
  configure.ac    | 9 +++++++++
- 2 files changed, 14 insertions(+), 2 deletions(-)
+ 2 files changed, 13 insertions(+), 1 deletion(-)
 
 diff --git a/Makefile.pre.in b/Makefile.pre.in
-index 5d78419fd4..660c292765 100644
+index dc84384680..2a82f3308f 100644
 --- a/Makefile.pre.in
 +++ b/Makefile.pre.in
-@@ -1336,8 +1336,7 @@ LIBSUBDIRS=	site-packages \
- 		turtledemo \
+@@ -1405,7 +1405,6 @@ LIBSUBDIRS=	site-packages \
  		multiprocessing multiprocessing/dummy \
  		unittest \
--		venv venv/scripts venv/scripts/common venv/scripts/posix \
--		curses
-+		venv venv/scripts venv/scripts/common venv/scripts/posix
+ 		venv venv/scripts venv/scripts/common venv/scripts/posix \
+-		curses \
+ 		zoneinfo
  
  TESTSUBDIRS=	test \
- 		test/audiodata \
-@@ -1413,6 +1412,10 @@ TESTSUBDIRS += tkinter/test tkinter/test/test_tkinter \
+@@ -1485,6 +1484,10 @@ TESTSUBDIRS += tkinter/test tkinter/test/test_tkinter \
  	tkinter/test/test_ttk
  endif
  
@@ -38,10 +36,10 @@ index 5d78419fd4..660c292765 100644
  LIBSUBDIRS += lib2to3 lib2to3/fixes lib2to3/pgen2
  TESTSUBDIRS += lib2to3/tests			\
 diff --git a/configure.ac b/configure.ac
-index b5922451cc..ea422a86a9 100644
+index 4c72dae960..acd98381a3 100644
 --- a/configure.ac
 +++ b/configure.ac
-@@ -3252,6 +3252,15 @@ if test "$TK" = "no"; then
+@@ -3347,6 +3347,15 @@ if test "$TK" = "no"; then
     DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} _tkinter"
  fi
  
@@ -58,5 +56,5 @@ index b5922451cc..ea422a86a9 100644
  
  AC_ARG_ENABLE(pydoc,
 -- 
-2.20.1
+2.25.1