post: use ARRAY_SIZE

We've got a handy dandy macro already for calculating the number of
elements in an array, so use it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/post/lib_powerpc/cr.c b/post/lib_powerpc/cr.c
index fbee6d5..ada7c7a 100644
--- a/post/lib_powerpc/cr.c
+++ b/post/lib_powerpc/cr.c
@@ -59,8 +59,7 @@
     0xaaaaaaaa,
     0x55555555,
 };
-static unsigned int cpu_post_cr_size1 =
-    sizeof (cpu_post_cr_table1) / sizeof (ulong);
+static unsigned int cpu_post_cr_size1 = ARRAY_SIZE(cpu_post_cr_table1);
 
 static struct cpu_post_cr_s2 {
     ulong xer;
@@ -76,8 +75,7 @@
 	5
     },
 };
-static unsigned int cpu_post_cr_size2 =
-    sizeof (cpu_post_cr_table2) / sizeof (struct cpu_post_cr_s2);
+static unsigned int cpu_post_cr_size2 = ARRAY_SIZE(cpu_post_cr_table2);
 
 static struct cpu_post_cr_s3 {
     ulong cr;
@@ -99,8 +97,7 @@
 	0x71234567
     },
 };
-static unsigned int cpu_post_cr_size3 =
-    sizeof (cpu_post_cr_table3) / sizeof (struct cpu_post_cr_s3);
+static unsigned int cpu_post_cr_size3 = ARRAY_SIZE(cpu_post_cr_table3);
 
 static struct cpu_post_cr_s4 {
     ulong cmd;
@@ -240,8 +237,7 @@
 	0x0000ffff
     },
 };
-static unsigned int cpu_post_cr_size4 =
-    sizeof (cpu_post_cr_table4) / sizeof (struct cpu_post_cr_s4);
+static unsigned int cpu_post_cr_size4 = ARRAY_SIZE(cpu_post_cr_table4);
 
 int cpu_post_test_cr (void)
 {