mb/pcengines/apuX: Refactor to avoid dead assignment

The initial value of `len` is never used. Declare and initialise all
local variables in a single statement to avoid this problem.

Change-Id: Ieb96758f4cd19d9d3f8fdc543e8ca17db06a2123
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55905
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/pcengines/apu1/mainboard.c b/src/mainboard/pcengines/apu1/mainboard.c
index 05c496d..187f8cf 100644
--- a/src/mainboard/pcengines/apu1/mainboard.c
+++ b/src/mainboard/pcengines/apu1/mainboard.c
@@ -168,14 +168,11 @@
 #if CONFIG(GENERATE_SMBIOS_TABLES)
 static int mainboard_smbios_type16(DMI_INFO *agesa_dmi, int *handle, unsigned long *current)
 {
-	struct smbios_type16 *t;
-	u32 max_capacity;
-	int len;
+	const u32 max_capacity = get_spd_offset() ? 4 : 2; /* 4GB or 2GB variant */
 
-	t = (struct smbios_type16 *)*current;
-	len = sizeof(*t);
+	struct smbios_type16 *t = (struct smbios_type16 *)*current;
+	int len = sizeof(*t);
 	memset(t, 0, len);
-	max_capacity = get_spd_offset() ? 4 : 2; /* 4GB or 2GB variant */
 
 	t->type = SMBIOS_PHYS_MEMORY_ARRAY;
 	t->handle = *handle;
diff --git a/src/mainboard/pcengines/apu2/mainboard.c b/src/mainboard/pcengines/apu2/mainboard.c
index bcf2536..2c3b861 100644
--- a/src/mainboard/pcengines/apu2/mainboard.c
+++ b/src/mainboard/pcengines/apu2/mainboard.c
@@ -150,14 +150,11 @@
 static int mainboard_smbios_type16(DMI_INFO *agesa_dmi, int *handle,
 				 unsigned long *current)
 {
-	struct smbios_type16 *t;
-	u32 max_capacity;
-	int len = 0;
+	const u32 max_capacity = get_spd_offset() ? 4 : 2; /* 4GB or 2GB variant */
 
-	t = (struct smbios_type16 *)*current;
-	len = sizeof(*t);
+	struct smbios_type16 *t = (struct smbios_type16 *)*current;
+	int len = sizeof(*t);
 	memset(t, 0, len);
-	max_capacity = get_spd_offset() ? 4 : 2; /* 4GB or 2GB variant */
 
 	t->type = SMBIOS_PHYS_MEMORY_ARRAY;
 	t->handle = *handle;