tests: fuelgauge: Add Onsemi LC709203F driver

Add test for the Onsemi LC709203F fuel gauge

Signed-off-by: Philipp Steiner <[email protected]>

Author: DBS06

tests/drivers/fuel_gauge/lc709203f/CMakeLists.txt

@@ -4,5 +4,4 @@ cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(device)
 
-FILE(GLOB app_sources src/test_lc709203f.c)
-target_sources(app PRIVATE ${app_sources})
+target_sources(app PRIVATE src/test_lc709203f.c)