drivers: Add missing #include <commonlib/helpers.h>

ALIGN and ALIGN_UP needs 'helpers.h

Change-Id: Ia18f69b58bae6d841d800dc38745ff27f51cec46
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33659
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/drivers/intel/fsp1_1/car.c b/src/drivers/intel/fsp1_1/car.c
index 67ed099..bd3f478 100644
--- a/src/drivers/intel/fsp1_1/car.c
+++ b/src/drivers/intel/fsp1_1/car.c
@@ -15,6 +15,7 @@
 
 #include <arch/symbols.h>
 #include <console/console.h>
+#include <commonlib/helpers.h>
 #include <cpu/intel/romstage.h>
 #include <cpu/x86/mtrr.h>
 #include <fsp/car.h>