Documentation: Update KVM list email address

The KVM list moved to vger.kernel.org last year

Signed-off-by: Amit Shah <[e-mail]>
Signed-off-by: Avi Kivity <[e-mail]>

Documentation/ioctl/ioctl-number.txt

···
 0xAD	00	Netfilter device	in development:
 					<mailto:[e-mail]>	
 0xAE	all	linux/kvm.h		Kernel-based Virtual Machine
-					<mailto:[e-mail]>
+					<mailto:[e-mail]>
 0xB0	all	RATIO devices		in development:
 					<mailto:[e-mail]>
 0xB1	00-1F	PPPoX			<mailto:[e-mail]>