tree: Use <stdio.h> for snprintf

<stdio.h> header is used for input/output operations (such as printf,
scanf, fopen, etc.). Although some input/output functions can manipulate
strings, they do not need to directly include <string.h> because they
are declared independently.

Change-Id: Ibe2a4ff6f68843a6d99cfdfe182cf2dd922802aa
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82665
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/drivers/intel/dptf/dptf.c

@@ -5,6 +5,7 @@
 #include <console/console.h>
 #include <device/device.h>
 #include <intelblocks/pmc_ipc.h>
+#include <stdio.h>
 #include <soc/dptf.h>
 #include <soc/pci_devs.h>
 #include "chip.h"

src/drivers/intel/fsp2_0/util.c

@@ -8,6 +8,7 @@
 #include <commonlib/fsp.h>
 #include <console/console.h>
 #include <fsp/util.h>
+#include <stdio.h>
 #include <string.h>
 #include <types.h>
 #include <assert.h>

src/drivers/intel/gma/acpi.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpigen.h>
+#include <stdio.h>
 #include <string.h>
 #include "i915.h"
 

src/drivers/intel/mipi_camera/camera.c

@@ -9,6 +9,8 @@
 #include <device/i2c_simple.h>
 #include <device/device.h>
 #include <device/pci_def.h>
+#include <stdio.h>
+
 #include "chip.h"
 
 #define CSI2_DATA_STREAM_INTERFACE_GUID \

src/drivers/intel/pmc_mux/conn/conn.c

@@ -7,6 +7,7 @@
 #include <console/console.h>
 #include <drivers/usb/acpi/chip.h>
 #include <intelblocks/acpi.h>
+#include <stdio.h>
 
 #include "chip.h"
 

src/drivers/intel/usb4/retimer/retimer.c

@@ -7,6 +7,7 @@
 #include <device/device.h>
 #include <drivers/usb/acpi/chip.h>
 #include <gpio.h>
+#include <stdio.h>
 #include <string.h>
 #include "chip.h"
 #include "retimer.h"