Enable frontend input loop when FrontendTune happens before Demux is
configured.

Test: atest VtsHalTvTunerV1_0TargetTest
Bug: 153366959
Change-Id: I6fa98e367a7530e308ea2a74e7efeb6ed4d3a56b
diff --git a/tv/tuner/1.0/default/Frontend.cpp b/tv/tuner/1.0/default/Frontend.cpp
index 61bbbf8..0c696a5 100644
--- a/tv/tuner/1.0/default/Frontend.cpp
+++ b/tv/tuner/1.0/default/Frontend.cpp
@@ -66,7 +66,7 @@
 
     mTunerService->frontendStartTune(mId);
     mCallback->onEvent(FrontendEventType::LOCKED);
-    mIsLocked = false;
+    mIsLocked = true;
     return Result::SUCCESS;
 }
 
@@ -276,6 +276,10 @@
     return mType == FrontendType::DVBS || mType == FrontendType::ISDBS ||
            mType == FrontendType::ISDBS3;
 }
+
+bool Frontend::isLocked() {
+    return mIsLocked;
+}
 }  // namespace implementation
 }  // namespace V1_0
 }  // namespace tuner