Add nghttp2 dependency for BIND 9.17.10+

bind.spec.in

@@ -72,6 +72,7 @@ BuildRequires:	%{python_version}-ply
 Requires:	%{python_version}-ply
 %endif
 %if %{MINOR_VERSION} >= 17
+BuildRequires:	libnghttp2-devel
 BuildRequires:	libtool
 %endif
 Requires:	%{name}-libs = %{PACKAGE_VERSION}