grub2: bump up version

After many years since the last release and a long time with grub 2.02
in beta, there is finally a release and it brings many bug fixes and
interesting features such as support for ARM.

Patch boot/grub2/0001-remove-gets.patch doesn't seem to be required
anymore as grub-core/gnulib/stdio.in.h has changed significantly since
"053cfcd Import new gnulib." and has another treatment for gets.
Patch
boot/grub2/0002-grub-core-gettext-gettext.c-main_context-secondary_c.patch
was a backport which is present after the bump and therefore is also no
longer necessary.

Since we're adding a Config.in comment, we also introduce a
BR2_TARGET_GRUB2_ARCH_SUPPORTS hidden boolean, in order to avoid
repeating the architecture dependencies.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Thomas: add BR2_TARGET_GRUB2_ARCH_SUPPORTS, remove bogus dependencies
on ARM and AArch64, since enabling Grub2 on those architectures is
done in another commit.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

boot/grub2/0001-remove-gets.patch

@@ -1,21 +0,0 @@
-ISO C11 removes the specification of gets() from the C language, eglibc 2.16+ removed it
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-
-Upstream-Status: Pending
-Index: grub-1.99/grub-core/gnulib/stdio.in.h
-===================================================================
---- grub-1.99.orig/grub-core/gnulib/stdio.in.h	2010-12-01 06:45:43.000000000 -0800
-+++ grub-1.99/grub-core/gnulib/stdio.in.h	2012-07-04 12:25:02.057099107 -0700
-@@ -140,8 +140,10 @@
- /* It is very rare that the developer ever has full control of stdin,
-    so any use of gets warrants an unconditional warning.  Assume it is
-    always declared, since it is required by C89.  */
-+#if defined gets
- #undef gets
- _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
-+#endif
- 
- #if @GNULIB_FOPEN@
- # if @REPLACE_FOPEN@

boot/grub2/0002-grub-core-gettext-gettext.c-main_context-secondary_c.patch

@@ -1,39 +0,0 @@
-From f30c692c1f9ef0e93bee2b408a24baa017f1ca9d Mon Sep 17 00:00:00 2001
-From: Vladimir Serbinenko <phcoder@gmail.com>
-Date: Thu, 7 Nov 2013 01:01:47 +0100
-Subject: [PATCH] 	* grub-core/gettext/gettext.c (main_context),
- (secondary_context): 	Define after defining type and not before.
-
-[Thomas: backport from upstream commit
-f30c692c1f9ef0e93bee2b408a24baa017f1ca9d, and remove ChangeLog
-modifications to avoid conflicts.]
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
----
- grub-core/gettext/gettext.c | 4 ++--
- 2 files changed, 7 insertions(+), 2 deletions(-)
-
-diff --git a/grub-core/gettext/gettext.c b/grub-core/gettext/gettext.c
-index df73570..4880cef 100644
---- a/grub-core/gettext/gettext.c
-+++ b/grub-core/gettext/gettext.c
-@@ -34,8 +34,6 @@ GRUB_MOD_LICENSE ("GPLv3+");
-    http://www.gnu.org/software/autoconf/manual/gettext/MO-Files.html .
- */
- 
--static struct grub_gettext_context main_context, secondary_context;
--
- static const char *(*grub_gettext_original) (const char *s);
- 
- struct grub_gettext_msg
-@@ -69,6 +67,8 @@ struct grub_gettext_context
-   struct grub_gettext_msg *grub_gettext_msg_list;
- };
- 
-+static struct grub_gettext_context main_context, secondary_context;
-+
- #define MO_MAGIC_NUMBER 		0x950412de
- 
- static grub_err_t
--- 
-2.7.4
-

boot/grub2/Config.in

@@ -1,6 +1,12 @@
+config BR2_TARGET_GRUB2_ARCH_SUPPORTS
+	bool
+	default y if BR2_i386
+	default y if BR2_x86_64
+
 config BR2_TARGET_GRUB2
 	bool "grub2"
-	depends on BR2_i386 || BR2_x86_64
+	depends on BR2_TARGET_GRUB2_ARCH_SUPPORTS
+	depends on BR2_USE_WCHAR
 	help
 	  GNU GRUB is a Multiboot boot loader. It was derived from
 	  GRUB, the GRand Unified Bootloader, which was originally
@@ -167,3 +173,7 @@ config BR2_TARGET_GRUB2_BUILTIN_CONFIG
 	  entries cannot be described in this embedded configuration.
 
 endif # BR2_TARGET_GRUB2
+
+comment "grub2 needs a toolchain w/ wchar"
+	depends on BR2_TARGET_GRUB2_ARCH_SUPPORTS
+	depends on !BR2_USE_WCHAR

boot/grub2/grub2.hash

@@ -1,2 +1,2 @@
-# Locally calculated after checking pgp signature
-sha256	784ec38e7edc32239ad75b8e66df04dc8bfb26d88681bc9f627133a6eb85c458	grub-2.00.tar.xz
+# Locally computed:
+sha256 810b3798d316394f94096ec2797909dbf23c858e48f7b3830826b8daa06b7b0f grub-2.02.tar.xz

boot/grub2/grub2.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-GRUB2_VERSION = 2.00
-GRUB2_SITE = $(BR2_GNU_MIRROR)/grub
+GRUB2_VERSION = 2.02
+GRUB2_SITE = http://ftp.gnu.org/gnu/grub
 GRUB2_SOURCE = grub-$(GRUB2_VERSION).tar.xz
 GRUB2_LICENSE = GPL-3.0+
 GRUB2_LICENSE_FILES = COPYING