src: use ARRAY_SIZE where possible

Generated with a variant of
https://coccinelle.gitlabpages.inria.fr/website/rules/array.cocci

Change-Id: I083704fd48faeb6c67bba3367fbcfe554a9f7c66
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50594
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/braswell/tsc_freq.c b/src/soc/intel/braswell/tsc_freq.c
index ae0cce3..5c10dd5 100644
--- a/src/soc/intel/braswell/tsc_freq.c
+++ b/src/soc/intel/braswell/tsc_freq.c
@@ -20,7 +20,7 @@
 {
 	msr_t clk_info = rdmsr(MSR_BSEL_CR_OVERCLOCK_CONTROL);
 
-	if ((clk_info.lo & 0xf) < (sizeof(cpu_bus_clk_freq_table) / sizeof(unsigned int)))
+	if ((clk_info.lo & 0xf) < ARRAY_SIZE(cpu_bus_clk_freq_table))
 		return cpu_bus_clk_freq_table[clk_info.lo & 0xf];
 
 	return 0;