Add BR for python-unversioned-command

autogen.sh script uses python, not python3.

Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>

0001-Add-riscv64-to-150-patch.patch

@@ -0,0 +1,25 @@
+From 264e0d598722f514ed8e3ce67b32238e164815a3 Mon Sep 17 00:00:00 2001
+From: Fedora Ninjas <grub2-owner@fedoraproject.org>
+Date: Sat, 9 Nov 2019 16:21:23 +0000
+Subject: [PATCH] Add riscv64 to 150 patch
+
+See:
+0150-Try-to-pick-better-locations-for-kernel-and-initrd.patch
+---
+ include/grub/riscv64/efi/memory.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/include/grub/riscv64/efi/memory.h b/include/grub/riscv64/efi/memory.h
+index c6cb324..acb61dc 100644
+--- a/include/grub/riscv64/efi/memory.h
++++ b/include/grub/riscv64/efi/memory.h
+@@ -2,5 +2,6 @@
+ #include <grub/efi/memory.h>
+ 
+ #define GRUB_EFI_MAX_USABLE_ADDRESS 0xffffffffffffULL
++#define GRUB_EFI_MAX_ALLOCATION_ADDRESS GRUB_EFI_MAX_USABLE_ADDRESS
+ 
+ #endif /* ! GRUB_MEMORY_CPU_HEADER */
+-- 
+2.24.0
+

grub.patches

@@ -183,3 +183,4 @@ Patch0182: 0182-Set-a-devicetree-var-in-a-BLS-config-if-GRUB_DEFAULT.patch
 Patch0183: 0183-Don-t-add-a-class-option-to-menu-entries-generated-f.patch
 Patch0184: 0184-10_linux.in-Also-use-GRUB_CMDLINE_LINUX_DEFAULT-to-s.patch
 Patch0185: 0185-blscfg-Don-t-hardcode-an-env-var-as-fallback-for-the.patch
+Patch0200: 0001-Add-riscv64-to-150-patch.patch

grub2.spec

@@ -34,7 +34,7 @@ Source12:	gnulib-%{gnulibversion}.tar.gz
 %include %{SOURCE2}
 
 BuildRequires:	gcc efi-srpm-macros
-BuildRequires:	flex bison binutils python3
+BuildRequires:	flex bison binutils python3 python-unversioned-command
 BuildRequires:	ncurses-devel xz-devel bzip2-devel
 BuildRequires:	freetype-devel libusb-devel
 BuildRequires:	fuse-devel