Allow 2 band Equalizers to pass CTS

Some hardware has only 3 or even 2 bands equalization.  Let them pass
CTS.

Bug: 111522776
Test: forrest test --extra_build_targets=test_suites_arm64 --test_location=remote --test_bench_config=apct/marlin --shard_count=2 th:cl:4621297/1:marlin-userdebug:git_master atp:cts/media/device-all
Change-Id: Iba932f8bf39d076c498f75ef847bed9b4dc37c76
diff --git a/tests/tests/media/src/android/media/cts/EqualizerTest.java b/tests/tests/media/src/android/media/cts/EqualizerTest.java
index a8bd98a..7c405a5 100644
--- a/tests/tests/media/src/android/media/cts/EqualizerTest.java
+++ b/tests/tests/media/src/android/media/cts/EqualizerTest.java
@@ -27,7 +27,7 @@
 public class EqualizerTest extends PostProcTestBase {
 
     private String TAG = "EqualizerTest";
-    private final static int MIN_NUMBER_OF_BANDS = 4;
+    private final static int MIN_NUMBER_OF_BANDS = 2;
     private final static int MAX_LEVEL_RANGE_LOW = 0;             // 0dB
     private final static int MIN_LEVEL_RANGE_HIGH = 0;            // 0dB
     private final static int TEST_FREQUENCY_MILLIHERTZ = 1000000; // 1kHz