fix sub-package arch

vmaf.spec

@@ -54,10 +54,12 @@ Obsoletes: %{name}-devel < %{version}-%{release}
 The %{name}-devel package contains libraries and header files for
 developing applications that use %{name}.
 
-%package models
-Summary:       Model files for %{name}
+%package        models
+Summary:        Model files for %{name}
+Requires:       libvmaf = %{version}-%{release}
+BuildArch:      noarch
 
-%description models
+%description    models
 The %{name}-models package contains model files.
 These are needed for apps that can't use the builtin models.
 
@@ -82,7 +84,7 @@ popd
 mkdir -p %{buildroot}%{rpmmacrodir}
 cat > %{buildroot}%{rpmmacrodir}/macros.%{name} << EOF
 # libvmaf RPM Macros
-%libvmaf_version	%{version}
+%libvmaf_version %{version}
 EOF
 touch -r LICENSE %{buildroot}%{rpmmacrodir}/macros.%{name}