Tegra: lib: debug: fix MISRA violation Rule 21.6

MISRA Rule 21.6, The standard library input/output functions
shall not be used.

This patch removes headers that are not really needed.

Change-Id: I746138ce7ee95d7ca985d020f89b2738d997a7a2
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

plat/nvidia/tegra/common/lib/debug/profiler.c

@@ -26,8 +26,6 @@
 #include <mmio.h>
 #include <profiler.h>
 #include <stdbool.h>
-#include <stdio.h>
-#include <stdint.h>
 #include <string.h>
 #include <utils_def.h>
 #include <xlat_tables_v2.h>