Support product specific VTS test configuration

The tuner vts will read the system property
ro.vendor.vts_tuner_configuration_variant as the suffix of the config
file to read. Vendor who wants to support multiple region for a single
SoC need to put all VTS config with different suffix as
/vendor/etc/tuner_vts_config_aidl_V1.{suffix}.xml on device.

Bug: 322899156
Test: atest VtsHalTvTunerTargetTest
Change-Id: I1f76d700671c07bc90965fba94f96b8be47198d7
diff --git a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.h b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.h
index 8ad6ee0..491a79b 100644
--- a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.h
+++ b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <android/binder_manager.h>
+#include <cutils/properties.h>
 
 #include "DemuxTests.h"
 #include "DescramblerTests.h"
@@ -29,6 +30,17 @@
 namespace {
 
 bool initConfiguration() {
+    std::array<char, PROPERTY_VALUE_MAX> variant;
+    auto res = property_get("ro.vendor.vts_tuner_configuration_variant", variant.data(), "");
+    if (res <= 0) {
+        ALOGE("[vts] failed to read system property ro.vendor.vts_tuner_configuration_variant");
+        return false;
+    }
+    string configFilePath = "/vendor/etc/tuner_vts_config_aidl_V1";
+    if (variant.size() != 0) {
+        configFilePath = configFilePath + "."  + variant.data();
+    }
+    configFilePath = configFilePath + ".xml";
     TunerTestingConfigAidlReader1_0::setConfigFilePath(configFilePath);
     if (!TunerTestingConfigAidlReader1_0::checkConfigFileExists()) {
         return false;
diff --git a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h
index ff94639..29d2f18 100644
--- a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h
+++ b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h
@@ -52,8 +52,6 @@
 const int32_t FMQ_SIZE_4M = 0x400000;
 const int32_t FMQ_SIZE_16M = 0x1000000;
 
-const string configFilePath = "/vendor/etc/tuner_vts_config_aidl_V1.xml";
-
 #define FILTER_MAIN_TYPE_BIT_COUNT 5
 #define STATUS_CHECK_INTERVAL_MS 100L