USB MIDI: Add more info to MIDI Endpoints

Add more info to MIDI endpoint descriptors.

Bug: 266473128
Test: adb shell dumpsys usb dump-descriptors -dump-list
Change-Id: I047b542f34de97b72b429454c7592dda8c1d2884

services/usb/java/com/android/server/usb/descriptors/UsbACMidi10Endpoint.java

@@ -62,6 +62,9 @@ public final class UsbACMidi10Endpoint extends UsbACEndpoint {
                 + " Length: " + getLength());
         canvas.openList();
         canvas.writeListItem("" + getNumJacks() + " Jacks.");
+        for (int i = 0; i < getNumJacks(); i++) {
+            canvas.writeListItem("Jack " + i + ": " + mJackIds[i]);
+        }
         canvas.closeList();
     }
 }

services/usb/java/com/android/server/usb/descriptors/UsbACMidi20Endpoint.java

@@ -62,6 +62,9 @@ public final class UsbACMidi20Endpoint extends UsbACEndpoint {
                 + " Length: " + getLength());
         canvas.openList();
         canvas.writeListItem("" + getNumGroupTerminals() + " Group Terminals.");
+        for (int i = 0; i < getNumGroupTerminals(); i++) {
+            canvas.writeListItem("Group Terminal " + i + ": " + mBlockIds[i]);
+        }
         canvas.closeList();
     }
 }