CMakeLists.txt: rename build to build_system. [1/1]

PD#SWPL-68240

Problem:
rename build to build_system sys_printf.c

Solution:
rename build to build_system sys_printf.c

Verify:
N/A

Signed-off-by: kelvin.zhang <kelvin.zhang@amlogic.com>
Change-Id: I1d74b78f7a7d3d98ab8a772c446833f7598acfb9
1 file changed
tree: 42e557e8d1720fddcc64649047b2579ec1cb7357
  1. CMakeLists.txt
  2. main.c
  3. prj.conf
  4. sw_business.c
  5. sw_business.h