kdumpctl: lower the log level in reset_crashkernel_for_installed_kernel
    
    Resolves: bz2078176
    Upstream: Fedora
    Conflict: None
    
    commit d619b6dabe354100e52b3280c3d36ace88217fd4
    Author: Lichen Liu <lichliu@redhat.com>
    Date:   Tue Apr 4 14:13:14 2023 +0800
    
        kdumpctl: lower the log level in reset_crashkernel_for_installed_kernel
    
        Although upgrading the kernel with `rpm -Uvh` is not recommended, the
        kexec-tools plugin prints confusing error logs when a customer upgrades the
        kernel through it.
    
        ```
        kdump: kernel 5.14.0-80.el9.x86_64 doesn't exist
        kdump: Couldn't find current running kernel
        ```
    
        Not finding the currently running kernel will only make kdump unable to copy the
        grub entry parameters to the newly installed kernel, so lower the log level.
    
        Signed-off-by: Lichen Liu <lichliu@redhat.com>
        Reviewed-by: Coiby Xu <coxu@redhat.com>
    
    Signed-off-by: Lichen Liu <lichliu@redhat.com>