kernel-srpm-macros.spec: update Requires: for binaries used in scripts
    
    Add "Requies:" tags for binearies used in various scripts, namely
    brp-kmod-compress, brp-kmod-set-exec-bit, find-provides.ksyms,
    find-requires.ksyms, and kmodtool.
    
    * kernel-srpm-macros.spec (%package -n kernel-rpm-macros) <Requires>:
    Add %{_bindir}/xz, %{_bindir}/find, %{_bindir}/sed, %{_bindir}/awk,
    %{_bindir}/grep, %{_bindir}/nm, %{_bindir}/objdump, %{_bindir}/readelf,
    %{_sbindir}/modinfo, %{_sbindir}/modprobe.
    
    Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
    Resolves: #2135047