Drop kexec_load syscall support
Drop kexec_load syscall support
JIRA: https://issues.redhat.com/browse/RHEL-29272
Upstream Status: RHEL-only
In RHEL9, kexec_file_load has been taken as the default interface
to do kexec reboot and vmcore dumping. In RHEL10, let's drop kexec_load
syscall support, kexec_file_load is only supported.
Signed-off-by: Baoquan He <bhe@redhat.com>