Disable kexec-tools for RISC-V (riscv64)

Not supported at this point.

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

anaconda.spec

@@ -7,7 +7,7 @@
 Summary: Graphical system installer
 Name:    anaconda
 Version: 29.15
-Release: 1%{?dist}
+Release: 1.0.riscv64%{?dist}
 License: GPLv2+ and MIT
 Group:   Applications/System
 URL:     http://fedoraproject.org/wiki/Anaconda
@@ -165,7 +165,9 @@ Requires: hfsplus-tools
 %endif
 %endif
 # kexec support
+%ifnarch riscv64
 Requires: kexec-tools
+%endif
 Requires: createrepo_c
 # run's on TTY1 in install env
 Requires: tmux
@@ -347,6 +349,9 @@ update-desktop-database &> /dev/null || :
 %{_prefix}/libexec/anaconda/dd_*
 
 %changelog
+* Tue Jun 05 2018 David Abdurachmanov <david.abdurachmanov@gmail.com> - 29.15-1.0.riscv64
+- Disable kexec-tools for RISC-V (riscv64)
+
 * Wed May 16 2018 Martin Kolman <mkolman@redhat.com> - 29.15-1
 - nvdimm: make debug messages more clear (rvykydal)
 - nvdimm: use libblockdev enum to check namespace mode (rvykydal)