Use %valgrind_arches for valgrind BR

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

gengetopt.spec

@@ -1,6 +1,6 @@
 Name:             gengetopt
 Version:          2.23
-Release:          1%{dist}
+Release:          1.0.riscv64%{dist}
 Summary:          Tool to write command line option parsing code for C programs
 License:          GPLv3+
 URL:              http://www.gnu.org/software/gengetopt/
@@ -8,7 +8,9 @@ Source0:          ftp://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz
 
 BuildRequires:  gcc-c++
 BuildRequires:  gcc
+%ifarch %{valgrind_arches}
 BuildRequires:  valgrind
+%endif
 BuildRequires:  texinfo
 Provides:         bundled(gnulib)
 
@@ -71,6 +73,9 @@ make check
 %{_mandir}/man1/%{name}.1*
 
 %changelog
+* Sat Sep 21 2019 David Abdurachmanov <david.abdurachmanvo@sifive.com> - 2.23 -1.0.riscv64
+- Use %%valgrind_arches macro for valgrind BR
+
 * Mon Sep 9 2019 Mosaab Alzoubi <moceap[At]hotmail[Dot]com> - 2.23 -1
 - Update to 2.23