Show how much time kdump has waited for the network to be ready
    
    Related: bz2151504
    Upstream: Fedora
    Conflict: None
    
    commit 12d9eff9dcd3bcd5890821c8d8a219b94412aca8
    Author: Coiby Xu <coxu@redhat.com>
    Date:   Tue Mar 28 16:33:34 2023 +0800
    
        Show how much time kdump has waited for the network to be ready
    
        Relates: https://bugzilla.redhat.com/show_bug.cgi?id=2151504
    
        Currently, when the network isn't ready, kdump would repeatedly print
        the same info,
    
            [   29.537230] kdump[671]: Bad kdump network destination: 192.123.1.21
            [   30.559418] kdump[679]: Bad kdump network destination: 192.123.1.21
            [   31.580189] kdump[687]: Bad kdump network destination: 192.123.1.21
    
        This is not user-friendly and users may think kdump has got stuck. So
        also show much time has waited for the network to be ready,
    
            [   29.546258] kdump[673]: Waiting for network to be ready (50s / 10min)
            ...
            [   32.608967] kdump[697]: Waiting for network to be ready (56s / 10min)
    
        Note kdump_get_ip_route no longer prints an error message and it's up to
        the caller to determine the log level and print relevant messages. And
        kdump_collect_netif_usage aborts when kdump_get_ip_route fails.
    
        Reported-by: Martin Pitt <mpitt@redhat.com>
        Signed-off-by: Coiby Xu <coxu@redhat.com>
        Reviewed-by: Philipp Rudo <prudo@redhat.com>
    
    Signed-off-by: Coiby Xu <coxu@redhat.com>