grub-efi: Re-introduce lost cast to long

This cast was accidentally dropped in
https://git.savannah.gnu.org/cgit/grub.git/commit/?id=2bf40e9e5be9808b17852e688eead87acff14420

(From OE-Core rev: c032297695e9e4bb4d0fb12dc883044bdfa870f2)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-bsp/grub/files/0001-RISC-V-Restore-the-typcast-to-long.patch

@@ -0,0 +1,29 @@
+From bf248231cb4f9f966f0d57821dd0491af54d4a0b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 26 Mar 2021 11:59:43 -0700
+Subject: [PATCH] RISC-V: Restore the typcast to long
+
+this makes the type promotions clear and explicit
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ util/grub-mkimagexx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/util/grub-mkimagexx.c b/util/grub-mkimagexx.c
+index 00f49cc..ab5523d 100644
+--- a/util/grub-mkimagexx.c
++++ b/util/grub-mkimagexx.c
+@@ -1242,7 +1242,7 @@ SUFFIX (relocate_addrs) (Elf_Ehdr *e, struct section_metadata *smd,
+ 		  */
+ 
+ 		 sym_addr += addend;
+-		 off = sym_addr - target_section_addr - offset - image_target->vaddr_offset;
++		 off = (long)sym_addr - target_section_addr - offset - image_target->vaddr_offset;
+ 
+ 		 switch (ELF_R_TYPE (info))
+ 		   {
+-- 
+2.31.0
+

meta/recipes-bsp/grub/grub2.inc

@@ -19,6 +19,7 @@ SRC_URI = "https://alpha.gnu.org/gnu/grub/grub-${REALPV}.tar.xz \
            file://grub-module-explicitly-keeps-symbole-.module_license.patch \
            file://0001-grub.d-10_linux.in-add-oe-s-kernel-name.patch \
            file://determinism.patch \
+           file://0001-RISC-V-Restore-the-typcast-to-long.patch \
 "
 
 SRC_URI[sha256sum] = "2c87f1f21e2ab50043e6cd9163c08f1b6c3a6171556bf23ff9ed65b074145484"