Update buildroot to 2021.02.1 (#1312)

Signed-off-by: Stefan Agner <stefan@agner.ch>

buildroot/package/efivar/0005-ucs2.h-remove-unused-variable.patch

@@ -0,0 +1,35 @@
+From fdb803402fb32fa6d020bac57a40c7efe4aabb7d Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Tue, 5 Mar 2019 17:23:24 +0100
+Subject: [PATCH] ucs2.h: remove unused variable
+
+The const uint16_t pointer is not used since now the two bytes of the
+UCS-2 chars are checked to know if is the termination of the string.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ src/ucs2.h | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/src/ucs2.h b/src/ucs2.h
+index edd8367..e0390c3 100644
+--- a/src/ucs2.h
++++ b/src/ucs2.h
+@@ -26,12 +26,11 @@ static inline size_t UNUSED
+ ucs2len(const void *vs, ssize_t limit)
+ {
+ 	ssize_t i;
+-	const uint16_t *s = vs;
+ 	const uint8_t *s8 = vs;
+ 
+ 	for (i = 0;
+ 	     i < (limit >= 0 ? limit : i+1) && s8[0] != 0 && s8[1] != 0;
+-	     i++, s8 += 2, s++)
++	     i++, s8 += 2)
+ 		;
+ 	return i;
+ }
+-- 
+2.20.1
+

buildroot/package/efivar/0006-ucs2.h-fix-logic-that-checks-for-UCS-2-string-termin.patch

@@ -0,0 +1,32 @@
+From 4e04afc2df9bbc26e5ab524b53a6f4f1e61d7c9e Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Tue, 5 Mar 2019 17:23:32 +0100
+Subject: [PATCH] ucs2.h: fix logic that checks for UCS-2 string termination
+
+Currently the loop to count the lenght of the UCS-2 string ends if either
+of the two bytes are 0, but 0 is a valid value for UCS-2 character codes.
+
+So only break the loop when 0 is the value for both UCS-2 char bytes.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ src/ucs2.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/ucs2.h b/src/ucs2.h
+index e0390c3..fd8b056 100644
+--- a/src/ucs2.h
++++ b/src/ucs2.h
+@@ -29,7 +29,7 @@ ucs2len(const void *vs, ssize_t limit)
+ 	const uint8_t *s8 = vs;
+ 
+ 	for (i = 0;
+-	     i < (limit >= 0 ? limit : i+1) && s8[0] != 0 && s8[1] != 0;
++	     i < (limit >= 0 ? limit : i+1) && !(s8[0] == 0 && s8[1] == 0);
+ 	     i++, s8 += 2)
+ 		;
+ 	return i;
+-- 
+2.20.1
+

buildroot/package/efivar/0007-gcc.specs-drop-Werror.patch

@@ -0,0 +1,44 @@
+From 8d5cf3347cce9d644f670ffd1d48e71d74635481 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Mon, 22 Mar 2021 07:52:34 +0100
+Subject: [PATCH] gcc.specs: drop -Werror
+
+Build with -Werror raises the following build failure with gcc 10:
+
+/home/buildroot/autobuild/run/instance-1/output-1/host/bin/aarch64-none-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -O2   -I/home/buildroot/autobuild/run/instance-1/output-1/build/efivar-37/src/include/   -specs=/home/buildroot/autobuild/run/instance-1/output-1/build/efivar-37/gcc.specs  -L.  -fPIC -Wl,-z,muldefs     -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o efivar efivar.c -lefivar -ldl
+In file included from efivar.h:28,
+                 from efivar.c:40:
+In function 'text_to_guid',
+    inlined from 'parse_name.constprop' at efivar.c:157:8:
+guid.h:106:2: error: 'strncpy' output may be truncated copying 8 bytes from a string of length 38 [-Werror=stringop-truncation]
+  106 |  strncpy(eightbytes, text, 8);
+      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
+cc1: all warnings being treated as errors
+
+Fixes:
+ - http://autobuild.buildroot.org/results/fcba72d359f4128515560e9105384cd4deff5043
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream status: not upstreamable as Makefiles were reworked and a new
+ERRORS parameter was added:
+https://github.com/rhboot/efivar/commit/998f617cec92d526e1fadb745673ceef63fa1483]
+---
+ gcc.specs | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc.specs b/gcc.specs
+index 45d43d1..1baf11a 100644
+--- a/gcc.specs
++++ b/gcc.specs
+@@ -2,7 +2,7 @@
+ + -D_GNU_SOURCE
+ 
+ *efivar_cpp_options:
+- -Werror -Wall -std=gnu11 -Wextra
++ -Wall -std=gnu11 -Wextra
+ 
+ *cpp_options:
+ + %(efivar_cpp_options)
+-- 
+2.30.1
+