dist: provide kernel-uname-r package

Upstream: no

Some third part package requires this.

Signed-off-by: Kairui Song <kasong@tencent.com>

dist/templates/kernel.template.spec

@@ -231,6 +231,7 @@ This is the meta package of %{?rpm_vendor:%{rpm_vendor} }Linux kernel, the core
 Summary: %{rpm_vendor} Linux Kernel
 Provides: installonlypkg(kernel)
 Provides: kernel-core = %{version}-%{release}
+Provides: kernel-uname-r = %{kernel_unamer}
 Requires(pre): coreutils
 Requires(post): coreutils kmod dracut
 Requires(preun): coreutils kmod