cpu/x86/mtrr/mtrr.c: Add missing <stdbool.h>

Remove <stdint.h>, <stddef.h> and add <stdbool.h>. All of them are
included through <types.h>.

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: If5296988c68302896e3676d7b80d0f133d5d4264
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68031
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
diff --git a/src/cpu/x86/mtrr/mtrr.c b/src/cpu/x86/mtrr/mtrr.c
index 41164bb..5f7535f 100644
--- a/src/cpu/x86/mtrr/mtrr.c
+++ b/src/cpu/x86/mtrr/mtrr.c
@@ -8,21 +8,21 @@
  * Programming
  */
 
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
+#include <assert.h>
 #include <bootstate.h>
 #include <commonlib/helpers.h>
 #include <console/console.h>
-#include <device/device.h>
-#include <device/pci_ids.h>
+#include <cpu/amd/mtrr.h>
 #include <cpu/cpu.h>
+#include <cpu/x86/cache.h>
 #include <cpu/x86/msr.h>
 #include <cpu/x86/mtrr.h>
-#include <cpu/x86/cache.h>
+#include <device/device.h>
+#include <device/pci_ids.h>
 #include <memrange.h>
-#include <cpu/amd/mtrr.h>
-#include <assert.h>
+#include <string.h>
+#include <types.h>
+
 #if CONFIG(X86_AMD_FIXED_MTRRS)
 #define MTRR_FIXED_WRBACK_BITS (MTRR_READ_MEM | MTRR_WRITE_MEM)
 #else