python3-gpiod: setup target config in ptest compile

The python3targetconfig class does not setup the build config for target
in do_ptest_compile_base so we need to do this manually. While at it: use
the provided nativepython3 command instead of using the full path.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-gpiod_2.1.3.bb

@@ -28,7 +28,8 @@ RDEPENDS:${PN}-ptest += " \
 export LINK_SYSTEM_LIBGPIOD = "1"
 
 do_compile_ptest() {
-    ${STAGING_BINDIR_NATIVE}/python3-native/python3 build_tests.py
+    setup_target_config
+    nativepython3 build_tests.py
 }
 
 do_install_ptest() {