Support enable/disable Frontends.

Bug: 210199978
Test: atest android.media.tv.tuner.cts on AIDL and HIDL HALs
Change-Id: I705458e1325aaae3800cc30b679ec22d7469680f
diff --git a/services/tuner/hidl/TunerHidlService.cpp b/services/tuner/hidl/TunerHidlService.cpp
index f4aa61a..6f55f1e 100644
--- a/services/tuner/hidl/TunerHidlService.cpp
+++ b/services/tuner/hidl/TunerHidlService.cpp
@@ -387,6 +387,19 @@
     return ::ndk::ScopedAStatus::ok();
 }
 
+::ndk::ScopedAStatus TunerHidlService::setMaxNumberOfFrontends(FrontendType /* in_frontendType */,
+                                                               int32_t /* in_maxNumber */) {
+    return ::ndk::ScopedAStatus::fromServiceSpecificError(
+            static_cast<int32_t>(Result::UNAVAILABLE));
+}
+
+::ndk::ScopedAStatus TunerHidlService::getMaxNumberOfFrontends(FrontendType /* in_frontendType */,
+                                                               int32_t* _aidl_return) {
+    *_aidl_return = -1;
+    return ::ndk::ScopedAStatus::fromServiceSpecificError(
+            static_cast<int32_t>(Result::UNAVAILABLE));
+}
+
 string TunerHidlService::addFilterToShared(const shared_ptr<TunerHidlFilter>& sharedFilter) {
     Mutex::Autolock _l(mSharedFiltersLock);