lguest and virtio: cleanup struct definitions to Linux style.

I've been doing this for years, and akpm picked me up on it about 12
months ago.  lguest partly serves as example code, so let's do it Right.

Also, remove two unused fields in struct vblk_info in the example launcher.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@redhat.com>
diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
index 1401c1a..b6200bc 100644
--- a/drivers/lguest/lguest_device.c
+++ b/drivers/lguest/lguest_device.c
@@ -207,8 +207,7 @@
  */
 
 /*D:140 This is the information we remember about each virtqueue. */
-struct lguest_vq_info
-{
+struct lguest_vq_info {
 	/* A copy of the information contained in the device config. */
 	struct lguest_vqconfig config;