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/perl-uri/perl-uri.hash

@@ -1,6 +1,6 @@
 # retrieved by scancpan from http://cpan.metacpan.org/
-md5    c236e0142adecc1b1104da664bc43a79 URI-1.76.tar.gz
-sha256 b2c98e1d50d6f572483ee538a6f4ccc8d9185f91f0073fd8af7390898254413e URI-1.76.tar.gz
+md5  978454ba823a6908bad1c3c1804945d3  URI-5.05.tar.gz
+sha256  a5c113d2d02706d9fbdca6a86f290c5b05b2f86836d4e7fe1447f063261b79ec  URI-5.05.tar.gz
 
 # computed by scancpan
-sha256 65cd6f88516a30f56fd4e0080fb78ea69424fc89067470dc994e4abfba08664e LICENSE
+sha256  65cd6f88516a30f56fd4e0080fb78ea69424fc89067470dc994e4abfba08664e  LICENSE