arch/x86: Drop _car_relocatable_data symbols

These have become aliases to _car_global_[start|end].

Change-Id: Ibdcaaafdc0e4c6df4a795474903768230d41680d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35033
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c
index 08afffc..1386d2c 100644
--- a/src/drivers/intel/fsp2_0/memory_init.c
+++ b/src/drivers/intel/fsp2_0/memory_init.c
@@ -407,7 +407,7 @@
 	/* Build up memory map of romstage address space including CAR. */
 	memranges_init_empty(&memmap, &freeranges[0], ARRAY_SIZE(freeranges));
 	memranges_insert(&memmap, (uintptr_t)_car_region_start,
-		_car_relocatable_data_end - _car_region_start, 0);
+		_car_unallocated_start - _car_region_start, 0);
 	memranges_insert(&memmap, (uintptr_t)_program, REGION_SIZE(program), 0);
 
 	if (!CONFIG(FSP_M_XIP))