util: Use common ARRAY_SIZE define

Remove duplicated definitions of ARRAY_SIZE macro across util/ dir.
Instead of duplicates, use the one from commonlib/bsd/helpers.h file.

BUG=b:231765496
TEST=make -C util/cbfstool; make -C util/cbmem;
     make -C util/intelmetool; make -C util/superiotool

Change-Id: I29b776586b4f0548d4026b2ac77095791fc9f3a3
Signed-off-by: Konrad Adamczyk <konrada@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74474
Reviewed-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-by: Grzegorz Bernacki
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/intelmetool/Makefile

@@ -2,10 +2,12 @@
 
 PROGRAM = intelmetool
 
+TOP     ?= $(abspath ../..)
 CC      ?= gcc
 INSTALL ?= /usr/bin/env install
 PREFIX  ?= /usr/local
-CFLAGS  ?= -O0 -g -Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -Wno-unused-function
+CFLAGS  ?= -O0 -g -Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -Wno-unused-function \
+           -I $(TOP)/src/commonlib/bsd/include
 LDFLAGS += -lpci -lz
 
 OBJS = intelmetool.o me.o me_status.o mmap.o rcba.o msr.o

util/intelmetool/me_status.c

@@ -1,10 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
+#include <commonlib/bsd/helpers.h>
 #include "me.h"
 
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
-
 /* HFS1[3:0] Current Working State Values */
 static const char *me_cws_values[] = {
 	[ME_HFS_CWS_RESET]	= "Reset",