KVM: Fix virtualization menu help text

What guest drivers?

Cc: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/kvm/Kconfig

@@ -6,7 +6,8 @@ menuconfig VIRTUALIZATION
 	depends on X86
 	default y
 	---help---
-	  Say Y here to get to see options for virtualization guest drivers.
+	  Say Y here to get to see options for using your Linux host to run other
+	  operating systems inside virtual machines (guests).
 	  This option alone does not add any kernel code.
 
 	  If you say N, all options in this submenu will be skipped and disabled.