soc/mediatek: Remove unused <string.h>

Change-Id: I8f88541dce457e978a2cbea036d4f6eae387963f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60559
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

src/soc/mediatek/mt8186/spm.c

@@ -12,7 +12,6 @@
 #include <soc/spm.h>
 #include <soc/spm_common.h>
 #include <soc/symbols.h>
-#include <string.h>
 #include <timer.h>
 
 #define SPM_SYSTEM_BASE_OFFSET 0x40000000

src/soc/mediatek/mt8192/spm.c

@@ -8,7 +8,6 @@
 #include <soc/spm.h>
 #include <soc/spm_common.h>
 #include <soc/symbols.h>
-#include <string.h>
 #include <timer.h>
 
 #define SPM_SYSTEM_BASE_OFFSET	0x40000000

src/soc/mediatek/mt8195/dp_intf.c

@@ -10,7 +10,6 @@
 #include <soc/pll.h>
 #include <soc/pll_common.h>
 #include <soc/spm.h>
-#include <string.h>
 #include <timer.h>
 
 static void mtk_dpintf_mask(struct mtk_dpintf *dpintf, u32 offset, u32 val, u32 mask)

src/soc/mediatek/mt8195/dptx_hal.c

@@ -7,7 +7,6 @@
 #include <soc/dptx.h>
 #include <soc/dptx_hal.h>
 #include <soc/dptx_reg.h>
-#include <string.h>
 #include <timer.h>
 #include <types.h>
 

src/soc/mediatek/mt8195/mt6360.c

@@ -4,7 +4,6 @@
 #include <device/i2c_simple.h>
 #include <soc/mt6360.h>
 #include <stdbool.h>
-#include <string.h>
 
 static struct mt6360_i2c_data i2c_data[] = {
 	[MT6360_INDEX_LDO] = {

src/soc/mediatek/mt8195/spm.c

@@ -8,7 +8,6 @@
 #include <soc/spm.h>
 #include <soc/spm_common.h>
 #include <soc/symbols.h>
-#include <string.h>
 #include <timer.h>
 
 #define SPM_SYSTEM_BASE_OFFSET	0x40000000