cpu/intel/car/p4-netburst: Prepare for x86_64

Use proper car symbols.

Change-Id: I169fd6020e5b81da66dbe4fe83ba446eedc882e9
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56018
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/cpu/intel/car/p4-netburst/cache_as_ram.S b/src/cpu/intel/car/p4-netburst/cache_as_ram.S
index 103d9e9..71ec9e3 100644
--- a/src/cpu/intel/car/p4-netburst/cache_as_ram.S
+++ b/src/cpu/intel/car/p4-netburst/cache_as_ram.S
@@ -11,6 +11,8 @@
 .section .init
 .global bootblock_pre_c_entry
 
+#include <cpu/intel/car/cache_as_ram_symbols.inc>
+
 .code32
 _cache_as_ram_setup:
 
@@ -212,7 +214,7 @@
 
 	/* Set Cache-as-RAM base address. */
 	movl	$(MTRR_PHYS_BASE(0)), %ecx
-	movl	$_car_mtrr_start, %eax
+	movl	car_mtrr_start, %eax
 	orl	$MTRR_TYPE_WRBACK, %eax
 	xorl	%edx, %edx
 	wrmsr
@@ -220,7 +222,7 @@
 	/* Set Cache-as-RAM mask. */
 	movl	$(MTRR_PHYS_MASK(0)), %ecx
 	rdmsr
-	movl	$_car_mtrr_mask, %eax
+	movl	car_mtrr_mask, %eax
 	orl	$MTRR_PHYS_MASK_VALID, %eax
 	wrmsr
 
@@ -272,12 +274,12 @@
 	/* Cache the whole rom to fetch microcode updates */
 	movl	$MTRR_PHYS_BASE(1), %ecx
 	xorl	%edx, %edx
-	movl	$_rom_mtrr_base, %eax
+	movl	rom_mtrr_base, %eax
 	orl	$MTRR_TYPE_WRPROT, %eax
 	wrmsr
 	movl	$MTRR_PHYS_MASK(1), %ecx
 	rdmsr
-	movl	$_rom_mtrr_mask, %eax
+	movl	rom_mtrr_mask, %eax
 	orl	$MTRR_PHYS_MASK_VALID, %eax
 	wrmsr
 
@@ -324,12 +326,12 @@
 	movl	$MTRR_PHYS_BASE(1), %ecx
 	xorl	%edx, %edx
 	movl	$_program, %eax
-	andl	$_xip_mtrr_mask, %eax
+	andl	xip_mtrr_mask, %eax
 	orl	$MTRR_TYPE_WRPROT, %eax
 	wrmsr
 	movl	$MTRR_PHYS_MASK(1), %ecx
 	rdmsr
-	movl	$_xip_mtrr_mask, %eax
+	movl	xip_mtrr_mask, %eax
 	orl	$MTRR_PHYS_MASK_VALID, %eax
 	wrmsr