Adjust compiler fixes that it builds on more modern build host (#2699)

patch/u-boot/u-boot-clearfog/0001-fixing-dtc-error.patch

@@ -0,0 +1,26 @@
+From a842a521b0532213286532542c8a7c98f2f2addf Mon Sep 17 00:00:00 2001
+From: Igor Pecovnik <igor.pecovnik@gmail.com>
+Date: Mon, 8 Mar 2021 09:38:23 +0000
+Subject: [PATCH] ;mmc;u-boot-spl-mmc.kwb:u-boot.emmc
+
+Signed-off-by: Igor Pecovnik <igor.pecovnik@gmail.com>
+---
+ scripts/dtc/dtc-lexer.lex.c_shipped | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/scripts/dtc/dtc-lexer.lex.c_shipped b/scripts/dtc/dtc-lexer.lex.c_shipped
+index 011bb96..c3b6316 100644
+--- a/scripts/dtc/dtc-lexer.lex.c_shipped
++++ b/scripts/dtc/dtc-lexer.lex.c_shipped
+@@ -631,7 +631,7 @@ char *yytext;
+ #include "srcpos.h"
+ #include "dtc-parser.tab.h"
+ 
+-YYLTYPE yylloc;
++extern YYLTYPE yylloc;
+ extern bool treesource_error;
+ 
+ /* CAUTION: this will stop working if we ever use yyless() or yyunput() */
+-- 
+Created with Armbian build tools https://github.com/armbian/build
+