Increase the size of threadpool to 16 in hal layer

Bug: 256771936
Test: atest VtsHalTvTunerTargetTest
Change-Id: I0d8f46b9b577337a7fbd42ab50bb1ee91af60210
diff --git a/tv/tuner/aidl/default/service.cpp b/tv/tuner/aidl/default/service.cpp
index f980f4a..aa9f796 100644
--- a/tv/tuner/aidl/default/service.cpp
+++ b/tv/tuner/aidl/default/service.cpp
@@ -26,7 +26,7 @@
 using ::aidl::android::hardware::tv::tuner::Tuner;
 
 int main() {
-    ABinderProcess_setThreadPoolMaxThreadCount(8);
+    ABinderProcess_setThreadPoolMaxThreadCount(16);
     std::shared_ptr<Tuner> tuner = ndk::SharedRefBase::make<Tuner>();
     tuner->init();