Fix the following rpmbuild warning:
$ make srcrpm-pkg
...
RPM build warnings:
line 34: It's not recommended to have unversioned Obsoletes: Obsoletes: kernel-headers
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>