Fix interrupt mixup from previous commit.

* include/grub/i386/pc/int.h (grub_i386_idt): New struct.
	(grub_realidt): New var.
	* grub-core/lib/i386/relocator16.S (grub_relocator16_idt): New variable
	Load idt.
	* grub-core/lib/i386/relocator.c (grub_relocator16_idt):
	New declaration.
	(grub_relocator16_boot): Set grub_relocator16_idt.
	* grub-core/kern/i386/realmode.S (realidt): Renamed to ...
	(LOCAL(realidt)): ... this.
	* grub-core/boot/i386/pc/startup_raw.S: Pass pointer to realidt in eax.
	* grub-core/kern/i386/pc/startup.S: Save pointer to realidt.
	(grub_realidt): New variable.

grub-core/kern/i386/pc/startup.S

@@ -56,6 +56,7 @@ _start:
 
 	movl	%ecx, (LOCAL(real_to_prot_addr) - _start) (%esi)
 	movl	%edi, (LOCAL(prot_to_real_addr) - _start) (%esi)
+	movl	%eax, (EXT_C(grub_realidt) - _start) (%esi)
 
 	/* copy back the decompressed part (except the modules) */
 	movl	$(_edata - _start), %ecx
@@ -177,6 +178,9 @@ FUNCTION(grub_pxe_call)
 
 #include "../int.S"
 
+VARIABLE(grub_realidt)
+	.long 0
+
 	.bss
 VARIABLE(grub_boot_device)
 	.long	0

grub-core/kern/i386/realmode.S

@@ -118,7 +118,7 @@ gdt:
 gdtdesc:
 	.word	0x27			/* limit */
 	.long	gdt			/* addr */
-realidt:
+LOCAL(realidt):
 	.word 0
 	.long 0
 protidt:
@@ -175,7 +175,7 @@ protcseg:
 	/* zero %eax */
 	xorl	%eax, %eax
 
-	sidt realidt
+	sidt LOCAL(realidt)
 	lidt protidt
 
 	/* return on the old (or initialized) stack! */
@@ -205,7 +205,7 @@ prot_to_real:
 	lgdt	gdtdesc
 
 	sidt    protidt
-	lidt    realidt
+	lidt    LOCAL(realidt)
 
 	/* save the protected mode stack */
 	movl	%esp, %eax