util/kconfig: Uprev to Linux 5.13's kconfig

This was originally several commits that had to be squashed into one
because the intermediate states weren't able to build coreboot:

 - one to remove everything that wasn't our own code, leaving only
   regex.[ch], toada.c, description.md and Makefile.inc.
 - one to copy in Linux 5.13's scripts/kconfig and adapt Makefile.inc
   to make the original Makefile work again.
 - adapt abuild to use olddefconfig, simplifying matters.
 - apply patches in util/kconfig/patches.
 - Some more adaptations to the libpayload build system.

The patches are now in util/kconfig/patches/, reverse applying them
should lead to a util/kconfig/ tree that contains exactly the Linux
version + our own 5 files.

Change-Id: Ia0e8fe4e9022b278f34ab113a433ef4d45e5c355
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37152
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/util/kconfig/patches/0004-src-util-Use-NULL-instead-of-0-for-pointer.patch b/util/kconfig/patches/0004-src-util-Use-NULL-instead-of-0-for-pointer.patch
new file mode 100644
index 0000000000..f451b58282
--- /dev/null
+++ b/util/kconfig/patches/0004-src-util-Use-NULL-instead-of-0-for-pointer.patch
@@ -0,0 +1,46 @@
+From e8287a030fc8fcec7404aa6731aef21a48035786 Mon Sep 17 00:00:00 2001
+From: Elyes HAOUAS <ehaouas@noos.fr>
+Date: Tue, 5 Jun 2018 08:41:29 +0200
+Subject: [PATCH] {src,util}: Use NULL instead of 0 for pointer
+
+Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
+---
+ util/kconfig/lxdialog/util.c | 2 +-
+ util/kconfig/qconf.h         | 8 ++++----
+ 2 files changed, 5 insertions(+), 5 deletions(-)
+
+Index: kconfig/lxdialog/util.c
+===================================================================
+--- kconfig.orig/lxdialog/util.c
++++ kconfig/lxdialog/util.c
+@@ -370,7 +370,7 @@ void print_autowrap(WINDOW * win, const
+ {
+ 	int newl, cur_x, cur_y;
+ 	int prompt_len, room, wlen;
+-	char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0;
++	char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = NULL;
+ 
+ 	strcpy(tempstr, prompt);
+ 
+Index: kconfig/qconf.h
+===================================================================
+--- kconfig.orig/qconf.h
++++ kconfig/qconf.h
+@@ -42,7 +42,7 @@ class ConfigList : public QTreeWidget {
+ 	Q_OBJECT
+ 	typedef class QTreeWidget Parent;
+ public:
+-	ConfigList(QWidget *parent, const char *name = 0);
++	ConfigList(QWidget *parent, const char *name = NULL);
+ 	~ConfigList();
+ 	void reinit(void);
+ 	ConfigItem* findConfigItem(struct menu *);
+@@ -188,7 +188,7 @@ class ConfigInfoView : public QTextBrows
+ 	typedef class QTextBrowser Parent;
+ 	QMenu *contextMenu;
+ public:
+-	ConfigInfoView(QWidget* parent, const char *name = 0);
++	ConfigInfoView(QWidget* parent, const char *name = NULL);
+ 	bool showDebug(void) const { return _showDebug; }
+ 
+ public slots: