Fix validation logic in TvInputAidlTest

[Description]
Handle validation incorrectly allows empty integer arrays, causing
potential errors.

Bug:348575546

[Test Report]
Test ok

Change-Id: Ie597fecfaa783b050510b11665a03e31ccb8feaf
(cherry picked from commit 3b85a4e59ad649211ddb5be4ec25addf289195a0)
diff --git a/tv/input/aidl/vts/functional/VtsHalTvInputTargetTest.cpp b/tv/input/aidl/vts/functional/VtsHalTvInputTargetTest.cpp
index 8d3395b..90404f6 100644
--- a/tv/input/aidl/vts/functional/VtsHalTvInputTargetTest.cpp
+++ b/tv/input/aidl/vts/functional/VtsHalTvInputTargetTest.cpp
@@ -135,13 +135,15 @@
 }
 
 bool TvInputAidlTest::isValidHandle(NativeHandle& handle) {
-    if (handle.fds.empty()) {
+    if (handle.fds.empty() && handle.ints.empty()) {
         return false;
     }
-    for (size_t i = 0; i < handle.fds.size(); i++) {
-        int fd = handle.fds[i].get();
-        if (fcntl(fd, F_GETFL) < 0) {
-            return false;
+    if (!(handle.fds.empty())) {
+        for (size_t i = 0; i < handle.fds.size(); i++) {
+            int fd = handle.fds[i].get();
+            if (fcntl(fd, F_GETFL) < 0) {
+                return false;
+            }
         }
     }
     return true;