src: Use 'include <string.h>' when appropriate

Drop 'include <string.h>' when it is not used and
add it when it is missing.
Also extra lines removed, or added just before local includes.

Change-Id: Iccac4dbaa2dd4144fc347af36ecfc9747da3de20
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31966
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

3 files changed, 0 insertions, 3 deletions

diff --git a/src/soc/rockchip/rk3399/display.c b/src/soc/rockchip/rk3399/display.c
index 35e338dc96..e2e9f7d49b 100644
--- a/src/soc/rockchip/rk3399/display.c
+++ b/src/soc/rockchip/rk3399/display.c
@@ -23,7 +23,6 @@
 #include <gpio.h>
 #include <stdlib.h>
 #include <stddef.h>
-#include <string.h>
 #include <soc/addressmap.h>
 #include <soc/clock.h>
 #include <soc/display.h>
diff --git a/src/soc/rockchip/rk3399/sdram.c b/src/soc/rockchip/rk3399/sdram.c
index e01b3a683b..0e8cda60d7 100644
--- a/src/soc/rockchip/rk3399/sdram.c
+++ b/src/soc/rockchip/rk3399/sdram.c
@@ -22,7 +22,6 @@
 #include <soc/sdram.h>
 #include <soc/grf.h>
 #include <soc/soc.h>
-#include <string.h>
 #include <timer.h>
 #include <types.h>
 
diff --git a/src/soc/rockchip/rk3399/soc.c b/src/soc/rockchip/rk3399/soc.c
index ee8ac8a4bf..3f3ff97c7f 100644
--- a/src/soc/rockchip/rk3399/soc.c
+++ b/src/soc/rockchip/rk3399/soc.c
@@ -24,7 +24,6 @@
 #include <soc/symbols.h>
 #include <stddef.h>
 #include <stdlib.h>
-#include <string.h>
 #include <symbols.h>
 
 void bootmem_platform_add_ranges(void)