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/exfatprogs/Config.in

@@ -0,0 +1,17 @@
+config BR2_PACKAGE_EXFATPROGS
+	bool "exfatprogs"
+	depends on BR2_USE_WCHAR
+	help
+	  exFAT filesystem userspace utilities.
+
+	  This is the set of tools that works together with the exfat
+	  driver in the official Linux kernel (merged in Linux 5.7).
+
+	  If you're using the FUSE-based exfat support (from
+	  package/exfat), you must use the corresponding user-space
+	  programs in package/exfat-utils.
+
+	  https://github.com/exfatprogs/exfatprogs
+
+comment "exfatprogs needs a toolchain w/ wchar"
+	depends on !BR2_USE_WCHAR

buildroot/package/exfatprogs/Config.in.host

@@ -0,0 +1,13 @@
+config BR2_PACKAGE_HOST_EXFATPROGS
+	bool "host exfatprogs"
+	help
+	  exFAT filesystem userspace utilities
+
+	  This is the set of tools that works together with the exfat
+	  driver in the official Linux kernel (merged in Linux 5.7).
+
+	  If you're using the FUSE-based exfat support (from
+	  package/exfat), you must use the corresponding user-space
+	  programs in package/exfat-utils.
+
+	  https://github.com/exfatprogs/exfatprogs

buildroot/package/exfatprogs/exfatprogs.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  982883f208a694962dff0654f4421a1a726d7d71068a0c84b93a10688179a186  exfatprogs-1.0.4.tar.gz
+sha256  576540abf5e95029ad4ad90e32071385a5e95b2c30708c706116f3eb87b9a3de  COPYING

buildroot/package/exfatprogs/exfatprogs.mk

@@ -0,0 +1,15 @@
+################################################################################
+#
+# exfatprogs
+#
+################################################################################
+
+EXFATPROGS_VERSION = 1.0.4
+EXFATPROGS_SITE = https://github.com/exfatprogs/exfatprogs/releases/download/$(EXFATPROGS_VERSION)
+EXFATPROGS_LICENSE = GPL-2.0+
+EXFATPROGS_LICENSE_FILES = COPYING
+EXFATPROGS_DEPENDENCIES = host-pkgconf
+HOST_EXFATPROGS_DEPENDENCIES = host-pkgconf
+
+$(eval $(autotools-package))
+$(eval $(host-autotools-package))