Add comment to track setSystemSelectionChannels api test

Since the system API for the hal is not implemented in Q, we disable the
vts test. Adding corresponding comments on the test.

Bug: 130254624
Test: Build
Change-Id: I777961aeaf8fb2baa28cee47cf3df4015a6ee0f0
diff --git a/radio/1.3/vts/functional/radio_hidl_hal_api.cpp b/radio/1.3/vts/functional/radio_hidl_hal_api.cpp
index 1bebae7..030f489 100644
--- a/radio/1.3/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.3/vts/functional/radio_hidl_hal_api.cpp
@@ -78,6 +78,8 @@
 
 /*
  * Test IRadio.setSystemSelectionChannels() for the response returned.
+ *
+ * This test is excluded from manifest, due to non-implementation in Q. Tracked by b/130254624.
  */
 TEST_F(RadioHidlTest_v1_3, setSystemSelectionChannels) {
     serial = GetRandomSerialNumber();