lib/libc: add ftrace tool. [5/6]

PD#SWPL-84829

Problem:
ftrace tool.

Solution:
irq trace.

Verify:
N/A

Signed-off-by: shijie.xiong <shijie.xiong@amlogic.com>
Change-Id: Iabab5ee202ee52eaae9871b3aeb2e5d348967af9
7 files changed
tree: 60d0b497a16bb7d84f45e4f82ed2caa94351cb45
  1. aml/
  2. newlib/
  3. CMakeLists.txt
  4. Kconfig