ktest: Set CLOSE_CONSOLE_SIGNAL in the kvm.conf

As mentioned at commit 5a5d8e48449, we can't terminate 'virsh console'
with the default signal(INT). So it's better to set CLOSE_CONSOLE_SIGNAL
in the kvm.conf.

Link: http://lkml.kernel.org/r/[e-mail]

Signed-off-by: Satoru Takeuchi <[e-mail]>
[ Typo fixed by ]
Signed-off-by: MUNEDA Takahiro <[e-mail]>
Signed-off-by: Steven Rostedt <[e-mail]>

tools/testing/ktest/examples/kvm.conf

···
 # Use virsh to read the serial console of the guest
 CONSOLE =  virsh console ${MACHINE}
 
+# Use SIGKILL to terminate virsh console. We can't kill virsh console
+# by the default signal, SIGINT.
+CLOSE_CONSOLE_SIGNAL = KILL
+
 #*************************************#
 # This part is the same as test.conf  #
 #*************************************#