convert from nl_unit_test to pw_unit_test: setup_payload (#33079)

* converting 3 minimal mDNS unit tests from NL_unit to pw_unit

* convert from nl_unit_test to pw_unit_test: setup_payload

* Revert "converting 3 minimal mDNS unit tests from NL_unit to pw_unit"

This reverts commit 4271f3f.

* Restyle

---------

Co-authored-by: Andrei Litvin <andreilitvin@google.com>

Author: Alami-Amine

src/BUILD.gn

@@ -86,6 +86,7 @@ if (chip_build_tests) {
         chip_device_platform != "efr32") {
       tests += [
         "${chip_root}/src/setup_payload/tests",
+        "${chip_root}/src/setup_payload/tests:tests_nltest",
         "${chip_root}/src/transport/raw/tests",
       ]
     }

src/setup_payload/tests/BUILD.gn

@@ -15,16 +15,33 @@
 import("//build_overrides/build.gni")
 import("//build_overrides/chip.gni")
 import("//build_overrides/nlunit_test.gni")
+import("//build_overrides/pigweed.gni")
 
 import("${chip_root}/build/chip/chip_test_suite.gni")
 
-chip_test_suite_using_nltest("tests") {
+chip_test_suite("tests") {
   output_name = "libSetupPayloadTests"
 
   test_sources = [
-    "TestAdditionalDataPayload.cpp",
     "TestManualCode.cpp",
     "TestQRCode.cpp",
+  ]
+
+  sources = [ "TestHelpers.h" ]
+
+  cflags = [ "-Wconversion" ]
+
+  public_deps = [
+    "${chip_root}/src/platform",
+    "${chip_root}/src/setup_payload",
+  ]
+}
+
+chip_test_suite_using_nltest("tests_nltest") {
+  output_name = "libSetupPayloadTestsNL"
+
+  test_sources = [
+    "TestAdditionalDataPayload.cpp",
     "TestQRCodeTLV.cpp",
   ]