x86: unify struct desc_ptr

This patch unifies struct desc_ptr between i386 and x86_64.
They can be expressed in the exact same way in C code, only
having to change the name of one of them. As Xgt_desc_struct
is ugly and big, this is the one that goes away.

There's also a padding field in i386, but it is not really
needed in the C structure definition.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 4e04e49..ced4ac1 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -290,7 +290,7 @@
 #ifdef CONFIG_X86_64
 	struct desc_ptr gdt_descr;
 #else
-	struct Xgt_desc_struct gdt_descr;
+	struct desc_ptr gdt_descr;
 #endif
 	struct desc_struct *gdt;
 	int me = raw_smp_processor_id();