Mark the kernel properly released.
    
    There perhaps was a typo, when SUSE_KERNEL_RELEASED missed the trailing
    "D" - this leads to our kernels being marked as "Unreleased kernel".
    SUSE_KERNEL_RELEASED is defined in rpm/kernel-binary.spec.in.
    
    To fix that, it should be enough to switch from SUSE_KERNEL_RELEASE to
    SUSE_KERNEL_RELEASED.
    
    Signed-off-by: Ales Novak <alnovak@suse.cz>