src: include <assert.h> when appropriate

Change-Id: Ib843eb7144b7dc2932931b9e8f3f1d816bcc1e1a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/26796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: David Guckian

src/arch/arm64/arm_tf.c

@@ -18,7 +18,6 @@
 #include <arch/mmu.h>
 #include <arch/transition.h>
 #include <arm_tf.h>
-#include <assert.h>
 #include <bootmem.h>
 #include <cbfs.h>
 #include <console/console.h>

src/arch/x86/acpigen.c

@@ -28,6 +28,7 @@
 #include <lib.h>
 #include <string.h>
 #include <arch/acpigen.h>
+#include <assert.h>
 #include <console/console.h>
 #include <device/device.h>
 

src/arch/x86/include/arch/acpigen.h

@@ -18,7 +18,6 @@
 #ifndef LIBACPI_H
 #define LIBACPI_H
 
-#include <assert.h>
 #include <stdlib.h>
 #include <stdint.h>
 #include <arch/acpi.h>