Add support for RISC-V (riscv64)

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

pesign.spec

@@ -3,7 +3,7 @@
 Name:    pesign
 Summary: Signing utility for UEFI binaries
 Version: 0.112
-Release: 25%{?dist}
+Release: 25.0.riscv64%{?dist}
 License: GPLv2
 URL:     https://github.com/vathpela/pesign
 
@@ -32,7 +32,7 @@ Requires:      nss-util
 Requires:      popt
 Requires:      rpm
 Requires(pre): shadow-utils
-ExclusiveArch: %{ix86} x86_64 ia64 aarch64 %{arm}
+ExclusiveArch: %{ix86} x86_64 ia64 aarch64 %{arm} riscv64
 %if 0%{?rhel} == 7
 BuildRequires: rh-signing-tools >= 1.20-2
 %endif
@@ -177,6 +177,9 @@ exit 0
 %{python3_sitelib}/mockbuild/plugins/pesign.*
 
 %changelog
+* Thu Mar 21 2019 David Abdurachmanov <david.abdurachmanov@gmail.com> - 0.112-25.0.riscv64
+- Add RISC-V (riscv64) support
+
 * Wed Mar  6 2019 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 0.112-25
 - Fix build (#1675653)
 - Add missing closing quote in macro (#1651020)