Add comment in single_source_alloc test to add half tests

Bug: 24862914

Add comment to add half tests once b/24862914 is fixed.

Change-Id: I68fac91b3720354723bdc35ef8ab4e3fda21a70d
diff --git a/java/tests/RsTest/src/com/android/rs/test/UT_single_source_alloc.java b/java/tests/RsTest/src/com/android/rs/test/UT_single_source_alloc.java
index d32b7e8..5907737 100644
--- a/java/tests/RsTest/src/com/android/rs/test/UT_single_source_alloc.java
+++ b/java/tests/RsTest/src/com/android/rs/test/UT_single_source_alloc.java
@@ -29,6 +29,7 @@
     private int dimZ = 5;
     private int start = 23;
 
+    // Bug: 24862914: Add half once the bug is fixed
     // rs_data_type for float, double, char, short, int, long, uchar, ushort, uint, ulong in that
     // order
     private int rsDataTypes[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11};