U-Boot: compatibility with Fedora 33

Thanks a ton to `marex` on IRC for pointing me in the right direction for that
f****** \#include thingy.

Change-Id: I4633589b22f5947d72d9b65953cee4c0e9defc33
diff --git a/board/czechlight/clearfog/patches/u-boot/0001-Remove-redundant-YYLOC-global-declaration.patch b/board/czechlight/clearfog/patches/u-boot/0001-Remove-redundant-YYLOC-global-declaration.patch
new file mode 100644
index 0000000..7520514
--- /dev/null
+++ b/board/czechlight/clearfog/patches/u-boot/0001-Remove-redundant-YYLOC-global-declaration.patch
@@ -0,0 +1,27 @@
+From ed9bbf870fad6be3ad1fb3f01fd3d2b08da915b1 Mon Sep 17 00:00:00 2001
+From: Peter Robinson <pbrobinson@gmail.com>
+Date: Thu, 30 Jan 2020 09:37:15 +0000
+Subject: [PATCH 1/3] Remove redundant YYLOC global declaration
+
+Same as the upstream fix for building dtc with gcc 10.
+
+Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
+---
+ scripts/dtc/dtc-lexer.l | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l
+index fd825ebba6..24af549977 100644
+--- a/scripts/dtc/dtc-lexer.l
++++ b/scripts/dtc/dtc-lexer.l
+@@ -38,7 +38,6 @@ LINECOMMENT	"//".*\n
+ #include "srcpos.h"
+ #include "dtc-parser.tab.h"
+ 
+-YYLTYPE yylloc;
+ extern bool treesource_error;
+ 
+ /* CAUTION: this will stop working if we ever use yyless() or yyunput() */
+-- 
+2.28.0
+